oci_bind_by_name

(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)

oci_bind_by_name — Binds a PHP variable to an Oracle placeholder

Açıklama

oci_bind_by_name(
    resource $statement,
    string $param,
    mixed &$var,
    int $max_length = -1,
    int $type = 0
): bool

Binds a PHP variable var to the Oracle bind variable placeholder param. Binding is important for Oracle database performance and also as a way to avoid SQL Injection security issues.

Binding allows the database to reuse the statement context and caches from previous executions of the statement, even if another user or process originally executed it. Binding reduces SQL Injection concerns because the data associated with a bind variable is never treated as part of the SQL statement. It does not need quoting or escaping.

PHP variables that have been bound can be changed and the statement re-executed without needing to re-parse the statement or re-bind.

In Oracle, bind variables are commonly divided into IN binds for values that are passed into the database, and OUT binds for values that are returned to PHP. A bind variable may be both IN and OUT. Whether a bind variable will be used for input or output is determined at run-time.

You must specify max_length when using an OUT bind so that PHP allocates enough memory to hold the returned value.

For IN binds it is recommended to set the max_length length if the statement is re-executed multiple times with different values for the PHP variable. Otherwise Oracle may truncate data to the length of the initial PHP variable value. If you don't know what the maximum length will be, then re-call oci_bind_by_name() with the current data size prior to each oci_execute() call. Binding an unnecessarily large length will have an impact on process memory in the database.

A bind call tells Oracle which memory address to read data from. For IN binds that address needs to contain valid data when oci_execute() is called. This means that the variable bound must remain in scope until execution. If it doesn't, unexpected results or errors such as "ORA-01460: unimplemented or unreasonable conversion requested" may occur. For OUT binds one symptom is no value being set in the PHP variable.

For a statement that is repeatedly executed, binding values that never change may reduce the ability of the Oracle optimizer to choose the best statement execution plan. Long running statements that are rarely re-executed may not benefit from binding. However in both cases, binding might be safer than joining strings into a SQL statement, as this can be a security risk if unfiltered user text is concatenated.

Bağımsız Değişkenler

statement

A valid OCI8 statement identifier.

param

The colon-prefixed bind variable placeholder used in the statement. The colon is optional in param. Oracle does not use question marks for placeholders.

var

The PHP variable to be associated with param

max_length

Sets the maximum length for the data. If you set it to -1, this function will use the current length of var to set the maximum length. In this case the var must exist and contain data when oci_bind_by_name() is called.

type

The datatype that Oracle will treat the data as. The default type used is SQLT_CHR. Oracle will convert the data between this type and the database column (or PL/SQL variable type), when possible.

If you need to bind an abstract datatype (LOB/ROWID/BFILE) you need to allocate it first using the oci_new_descriptor() function. The length is not used for abstract datatypes and should be set to -1.

Possible values for type are:

SQLT_BFILEE or OCI_B_BFILE - for BFILEs;
SQLT_CFILEE or OCI_B_CFILEE - for CFILEs;
SQLT_CLOB or OCI_B_CLOB - for CLOBs;
SQLT_BLOB or OCI_B_BLOB - for BLOBs;
SQLT_RDD or OCI_B_ROWID - for ROWIDs;
SQLT_NTY or OCI_B_NTY - for named datatypes;
SQLT_INT or OCI_B_INT - for integers;
SQLT_CHR - for VARCHARs;
SQLT_BIN or OCI_B_BIN - for RAW columns;
SQLT_LNG - for LONG columns;
SQLT_LBI - for LONG RAW columns;
SQLT_RSET - for cursors created with oci_new_cursor();
SQLT_BOL or OCI_B_BOL - for PL/SQL BOOLEANs (Requires Oracle Database 12c)

Dönen Değerler

Başarı durumunda true, başarısızlık durumunda false döner.

Örnekler

Örnek 1 Inserting data with oci_bind_by_name()

<?php

// Create the table with:
//   CREATE TABLE mytab (id NUMBER, text VARCHAR2(40));

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$stid = oci_parse($conn,"INSERT INTO mytab (id, text) VALUES(:id_bv, :text_bv)");

$id = 1;
$text = "Data to insert     ";
oci_bind_by_name($stid, ":id_bv", $id);
oci_bind_by_name($stid, ":text_bv", $text);
oci_execute($stid);

// Table now contains: 1, 'Data to insert     '

?>

Örnek 2 Binding once for multiple executions

<?php

// Create the table with:
//   CREATE TABLE mytab (id NUMBER);

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$a = array(1,3,5,7,11);  // data to insert

$stid = oci_parse($conn, 'INSERT INTO mytab (id) VALUES (:bv)');
oci_bind_by_name($stid, ':bv', $v, 20);
foreach ($a as $v) {
    $r = oci_execute($stid, OCI_DEFAULT);  // don't auto commit
}
oci_commit($conn); // commit everything at once

// Table contains five rows: 1, 3, 5, 7, 11

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 3 Binding with a foreach loop

<?php

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$sql = 'SELECT * FROM departments WHERE department_name = :dname AND location_id = :loc';
$stid = oci_parse($conn, $sql);

$ba = array(':dname' => 'IT Support', ':loc' => 1700);

foreach ($ba as $key => $val) {

    // oci_bind_by_name($stid, $key, $val) does not work
    // because it binds each placeholder to the same location: $val
    // instead use the actual location of the data: $ba[$key]
    oci_bind_by_name($stid, $key, $ba[$key]);
}

oci_execute($stid);
$row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS);
foreach ($row as $item) {
    print $item."<br>\n";
}

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 4 Binding in a WHERE clause

<?php

$conn = oci_connect("hr", "hrpwd", "localhost/XE");
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$sql = 'SELECT last_name FROM employees WHERE department_id = :didbv ORDER BY last_name';
$stid = oci_parse($conn, $sql);
$didbv = 60;
oci_bind_by_name($stid, ':didbv', $didbv);
oci_execute($stid);
while (($row = oci_fetch_array($stid, OCI_ASSOC)) != false) {
    echo $row['LAST_NAME'] ."<br>\n";
}

// Output is
//    Austin
//    Ernst
//    Hunold
//    Lorentz
//    Pataballa

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 5 Binding with a LIKE clause

<?php

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

// Find all cities that begin with 'South'
$stid = oci_parse($conn, "SELECT city FROM locations WHERE city LIKE :bv");
$city = 'South%';  // '%' is a wildcard in SQL
oci_bind_by_name($stid, ":bv", $city);
oci_execute($stid);
oci_fetch_all($stid, $res);

foreach ($res['CITY'] as $c) {
    print $c . "<br>\n";
}
// Output is
//   South Brunswick
//   South San Francisco
//   Southlake

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 6 Binding with REGEXP_LIKE

<?php

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

// Find all cities that contain 'ing'
$stid = oci_parse($conn, "SELECT city FROM locations WHERE REGEXP_LIKE(city, :bv)");
$city = '.*ing.*';
oci_bind_by_name($stid, ":bv", $city);
oci_execute($stid);
oci_fetch_all($stid, $res);

foreach ($res['CITY'] as $c) {
    print $c . "<br>\n";
}
// Output is
//   Beijing
//   Singapore

oci_free_statement($stid);
oci_close($conn);

?>

For a small, fixed number of IN clause conditions, use individual bind variables. Values unknown at run time can be set to NULL. This allows a single statement to be used by all application users, maximizing Oracle DB cache efficiency.

Örnek 7 Binding Multiple Values in an IN Clause

<?php

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$sql = 'SELECT last_name FROM employees WHERE employee_id in (:e1, :e2, :e3)';
$stid = oci_parse($conn, $sql);
$mye1 = 103;
$mye2 = 104;
$mye3 = NULL; // pretend we were not given this value
oci_bind_by_name($stid, ':e1', $mye1);
oci_bind_by_name($stid, ':e2', $mye2);
oci_bind_by_name($stid, ':e3', $mye3);
oci_execute($stid);
oci_fetch_all($stid, $res);
foreach ($res['LAST_NAME'] as $name) {
    print $name ."<br>\n";
}

// Output is
//   Ernst
//   Hunold

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 8 Binding a ROWID returned by a query

<?php

// Create the table with:
//   CREATE TABLE mytab (id NUMBER, salary NUMBER, name VARCHAR2(40));
//   INSERT INTO mytab (id, salary, name) VALUES (1, 100, 'Chris');
//   COMMIT;

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$stid = oci_parse($conn, 'SELECT ROWID, name FROM mytab WHERE id = :id_bv FOR UPDATE');
$id = 1;
oci_bind_by_name($stid, ':id_bv', $id);
oci_execute($stid);
$row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS);
$rid = $row['ROWID'];
$name = $row['NAME'];

// Change name to upper case & save the changes
$name = strtoupper($name);
$stid = oci_parse($conn, 'UPDATE mytab SET name = :n_bv WHERE ROWID = :r_bv');
oci_bind_by_name($stid, ':n_bv', $name);
oci_bind_by_name($stid, ':r_bv', $rid, -1, OCI_B_ROWID);
oci_execute($stid);

// The table now contains 1, 100, CHRIS

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 9 Binding a ROWID on INSERT

<?php

// This example inserts an id & name, and then updates the salary
// Create the table with:
//   CREATE TABLE mytab (id NUMBER, salary NUMBER, name VARCHAR2(40));
//
// Based on original ROWID example by thies at thieso dot net (980221)

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $m = oci_error();
    trigger_error(htmlentities($m['message']), E_USER_ERROR);
}

$sql = "INSERT INTO mytab (id, name) VALUES(:id_bv, :name_bv)
        RETURNING ROWID INTO :rid";

$ins_stid = oci_parse($conn, $sql);

$rowid = oci_new_descriptor($conn, OCI_D_ROWID);
oci_bind_by_name($ins_stid, ":id_bv",   $id,    10);
oci_bind_by_name($ins_stid, ":name_bv", $name,  32);
oci_bind_by_name($ins_stid, ":rid",     $rowid, -1, OCI_B_ROWID);

$sql = "UPDATE mytab SET salary = :salary WHERE ROWID = :rid";
$upd_stid = oci_parse($conn, $sql);
oci_bind_by_name($upd_stid, ":rid", $rowid, -1, OCI_B_ROWID);
oci_bind_by_name($upd_stid, ":salary", $salary,   32);

// ids and names to insert
$data = array(1111 => "Larry",
              2222 => "Bill",
              3333 => "Jim");

// Salary of each person
$salary = 10000;

// Insert and immediately update each row
foreach ($data as $id => $name) {
    oci_execute($ins_stid);
    oci_execute($upd_stid);
}

$rowid->free();
oci_free_statement($upd_stid);
oci_free_statement($ins_stid);

// Show the new rows
$stid = oci_parse($conn, "SELECT * FROM mytab");
oci_execute($stid);
while ($row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS)) {
    var_dump($row);
}

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 10 Binding for a PL/SQL stored function

<?php

//  Before running the PHP program, create a stored function in
//  SQL*Plus or SQL Developer:
//
//  CREATE OR REPLACE FUNCTION myfunc(p IN NUMBER) RETURN NUMBER AS
//  BEGIN
//      RETURN p * 3;
//  END;

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $e = oci_error();
    trigger_error(htmlentities($e['message']), E_USER_ERROR);
}

$p = 8;

$stid = oci_parse($conn, 'begin :r := myfunc(:p); end;');
oci_bind_by_name($stid, ':p', $p);

// The return value is an OUT bind. The default type will be a string
// type so binding a length 40 means that at most 40 digits will be
// returned.
oci_bind_by_name($stid, ':r', $r, 40);

oci_execute($stid);

print "$r\n";   // prints 24

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 11 Binding parameters for a PL/SQL stored procedure

<?php

//  Before running the PHP program, create a stored procedure in
//  SQL*Plus or SQL Developer:
//
//  CREATE OR REPLACE PROCEDURE myproc(p1 IN NUMBER, p2 OUT NUMBER) AS
//  BEGIN
//      p2 := p1 * 2;
//  END;

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $e = oci_error();
    trigger_error(htmlentities($e['message']), E_USER_ERROR);
}

$p1 = 8;

$stid = oci_parse($conn, 'begin myproc(:p1, :p2); end;');
oci_bind_by_name($stid, ':p1', $p1);

// The second procedure parameter is an OUT bind. The default type
// will be a string type so binding a length 40 means that at most 40
// digits will be returned.
oci_bind_by_name($stid, ':p2', $p2, 40);

oci_execute($stid);

print "$p2\n";   // prints 16

oci_free_statement($stid);
oci_close($conn);

?>

Örnek 12 Binding a CLOB column

<?php

// Before running, create the table:
//     CREATE TABLE mytab (mykey NUMBER, myclob CLOB);

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $e = oci_error();
    trigger_error(htmlentities($e['message']), E_USER_ERROR);
}

$mykey = 12343;  // arbitrary key for this example;

$sql = "INSERT INTO mytab (mykey, myclob)
        VALUES (:mykey, EMPTY_CLOB())
        RETURNING myclob INTO :myclob";

$stid = oci_parse($conn, $sql);
$clob = oci_new_descriptor($conn, OCI_D_LOB);
oci_bind_by_name($stid, ":mykey", $mykey, 5);
oci_bind_by_name($stid, ":myclob", $clob, -1, OCI_B_CLOB);
oci_execute($stid, OCI_DEFAULT);
$clob->save("A very long string");

oci_commit($conn);

// Fetching CLOB data

$query = 'SELECT myclob FROM mytab WHERE mykey = :mykey';

$stid = oci_parse ($conn, $query);
oci_bind_by_name($stid, ":mykey", $mykey, 5);
oci_execute($stid);

print '<table border="1">';
while ($row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_LOBS)) {
    print '<tr><td>'.$row['MYCLOB'].'</td></tr>';
    // In a loop, freeing the large variable before the 2nd fetch reduces PHP's peak memory usage
    unset($row);  
}
print '</table>';

?>

Örnek 13 Binding a PL/SQL BOOLEAN

<?php

$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
    $e = oci_error();
    trigger_error(htmlentities($e['message']), E_USER_ERROR);
}

$plsql = 
  "begin
    :output1 := true;
    :output2 := false;
   end;";

$s = oci_parse($c, $plsql);
oci_bind_by_name($s, ':output1', $output1, -1, OCI_B_BOL);
oci_bind_by_name($s, ':output2', $output2, -1, OCI_B_BOL);
oci_execute($s);
var_dump($output1);  // true
var_dump($output2);  // false

?>

Notlar

Uyarı

Do not use addslashes() and oci_bind_by_name() simultaneously as no quoting is needed. Any magically applied quotes will be written into your database because oci_bind_by_name() inserts data verbatim and does not remove quotes or escape characters.

Bilginize:
If you bind a string to a CHAR column in a WHERE clause, remember that Oracle uses blank-padded comparison semantics for CHAR columns. Your PHP variable should be blank padded to the same width as the column for the WHERE clause to succeed.

Bilginize:
The PHP var argument is a reference. Some forms of loops do not work as expected:

<?php foreach ($myarray as $key => $value) { oci_bind_by_name($stid, $key, $value); } ?>

This binds each key to the location of $value, so all bound variables end up pointing to the last loop iteration's value. Instead use the following:

<?php foreach ($myarray as $key => $value) { oci_bind_by_name($stid, $key, $myarray[$key]); } ?>

Ayrıca Bakınız

oci_bind_array_by_name() - Binds a PHP array to an Oracle PL/SQL array parameter
oci_parse() - Prepares an Oracle statement for execution

add a note

User Contributed Notes 18 notes

down

abiyi2000 at yahoo dot com ¶

13 years ago


I unfortunately spent the whole day trying to make this work as part of OCI bind_by_name insert:



<?php

      if(is_numeric($v2)){

        oci_bind_by_name($stmth, $bvar, $v2,  -1, OCI_B_INT);

      }else{

        $v2 = (string) $v2;

        oci_bind_by_name($stmth, $bvar, $v2, -1, SQLT_CHR);

      }

?>



The string field is always inserting correctly w/o any truncation. The string field is a  varchar2(160) CHAR, but the data used to populate it is 40 chars in length.



The numeric part is of Type Number in the database which is being used to store unix time (10 digit seconds since 1970/01/01.



The problem, the insert was truncating to 9 digits with some bogus value not even related to the input i.e., it's not just a matter of dropping the leftmost or rightmost digit, it'll just insert a 9 digit bogus number.



The only way I was able to resolve this for the numeric field was to set the maxlength to 8 (not 10 which is the number of digits in the input): 



<?php

      if(is_numeric($v2)){

        oci_bind_by_name($stmth, $bvar, $v2,  8, OCI_B_INT);

      }else{

        $v2 = (string) $v2;

        oci_bind_by_name($stmth, $bvar, $v2, -1, SQLT_CHR);

      }

?>



Hopefully you'll see this soon before you expend a lot of time repeating the same problem I had.

down

martin dot abbrent at ufz dot de ¶

8 years ago


Example #7 only shows the binding of a small fixed number of values in an IN clause. There is also a way to bind multiple conditions with a variable number of values.

<?php
$ids = array(
    103,
    104
);

$conn         = oci_pconnect($user, $pass, $tns);
// Using ORACLE table() function to get the ids from the subquery
$sql          = 'SELECT * FROM employees WHERE employee_id IN (SELECT column_value FROM table(:ids))';
$stmt         = oci_parse($conn, $sql);
// Create collection of numbers. Build in type for strings is ODCIVARCHAR2LIST, but you can also create own types.
$idCollection = oci_new_collection($conn, 'ODCINUMBERLIST', 'SYS');

// Maximum length of collections of type ODCINUMBERLIST is 32767, maybe you should check that!
foreach ($ids as $id) {
    $idCollection->append($id);
}

oci_bind_by_name($stmt, ':ids', $idCollection, -1, SQLT_NTY);
oci_execute($stmt, OCI_DEFAULT);
oci_fetch_all($stmt, $return);
oci_free_statement($stmt);

oci_close($conn);

?>

down

avenger at php dot net ¶

15 years ago


Dont forget the 5th parameter: $type. It's will slowly your code some times. Eg:

<?php
$sql = "select * from (select * from b xxx) where rownum < :rnum";
$stmt = OCIParse($conn,$sql);
OCIBindByName($stmt, ":rnum", $NUM, -1);
OCIExecute($stmt);
?>

Below code was slow 5~6 time than not use bind value.Change the 3rd line to:

<?php
OCIBindByName($stmt, ":rnum", $NUM, -1, SQLT_INT);
?>

will resloved this problem.

This issue is also in the ADODB DB class(adodb.sf.net), you will be careful for use the SelectLimit method.

down

splintyg at gmail dot com ¶

7 years ago


Guys, i've been looking for long time, how to pass clob to and get from procedure
CREATE OR REPLACE PROCEDURE myproc(p1 IN clob, p2 OUT clob);

Here You are an answer:

<?php
        $conn = oci_connect("TEST", "html", "//hostname", "UTF8");

    $filename = "./clob.txt";
    $handle = fopen($filename, "r");
    $f = fread($handle, filesize($filename));
    fclose($handle);

    $stid = oci_parse($conn, "begin myproc(:p1, :p2); end;");
    $p1 = oci_new_descriptor($conn, OCI_D_LOB);
    $p2 = oci_new_descriptor($conn, OCI_D_LOB);
    
    oci_bind_by_name($stid, ":p1", $p1, -1, OCI_B_CLOB);
    oci_bind_by_name($stid, ":p2", $p2, -1, OCI_B_CLOB);
    $p1->writeTemporary($f, OCI_TEMP_BLOB);
    oci_execute($stid); -- Figure out OCI_NO_AUTO_COMMIT
    oci_commit($conn);
    echo $p2->load(); 
    
    $p1    ->close();
    $p2    ->close();
    oci_free_statement($stid);
    oci_close($conn);
?>

And perfect book about "PHP and Oracle" 
http://www.oracle.com/technetwork/topics/php/underground-php-oracle-manual-098250.html

down

dub357 at gmail dot com ¶

10 months ago


The note about the PHP var argument being a reference and some kinds of loops not working is very important here.  However, you can make a foreach loop work if you create a temporary variable, use that in the bind and then unset it.  For example:

<?php
foreach ($myarray as $key => $val)  {
    $value = $val;
    oci_bind_by_name($stid, $key, $value);
    unset($value);
}
?>

This binds each key to the location of $value, but when you unset it after binding, it can be set and used again.

https://www.php.net/manual/en/function.unset.php

down

charles dot fisher at arconic dot com ¶

3 years ago


I am trying to rework ADOdb library calls to OCI, and I wrote this function today which is helping.

function OraQry(&$Results, $Query, $Binds = false) {
  global $xdb;

  $Results = oci_parse($xdb, $Query);

  if($Binds) foreach($Binds as $BindNm => $BindValJunk)
    oci_bind_by_name($Results, $BindNm, $Binds[$BindNm], -1);

  oci_execute($Results, OCI_NO_AUTO_COMMIT);

  return null;
}

This also has similarity to PDO in passing an array of bind variables, with the added benefit that if they are named numerically (starting at zero), then the call to the array() function can be omitted:

OraQry($rs,
  'select status from all_tables where owner=:0 and table_name=:1',
    [$owner, $table_name]);

while($arr = oci_fetch_assoc($rs)) echo $arr['STATUS'] . "\n";

down

asui dot dev dot null at gmail dot com ¶

5 years ago


If you are getting "ORA-01722: invalid number error" while inserting/updating a FLOAT value into a NUMBER column, please check the correctness of a binded value format according to the current locale settings. 

Default "american" locale assumes that value send to oracle will be a dot decimal separator (just like 4127.5). But with setlocale('pl_PL.UTF-8') your float number would be represented as 4127,5 and that form will be used while sending data do oracle causing a problem...
That was my case (8 hours of debugging).

You can check your current locale with setlocale(LC_ALL, 0).

What I can recommend as a solutions:
a) do not set locale, or set it to 'C' for a time of sending data;
b) convert float to a string format compatible with current oracle session NLS_NUMERIC_CHARACTERS parameter value. 
For example: when NLS_NUMERIC_CHARACTERS = '.,' float value 4127.5 should be converted to '4127.5'.  Then oracle will catch it correctly even if current locale are set differently.

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splintyg at gmail dot com ¶

7 years ago


Guys, i've been looking for long time, how to pass clob to and get from procedure
CREATE OR REPLACE PROCEDURE myproc(p1 IN clob, p2 OUT clob);

Here You are an answer:

<?php
        $conn = oci_connect("TEST", "html", "//hostname", "UTF8");

    $filename = "./clob.txt";
    $handle = fopen($filename, "r");
    $f = fread($handle, filesize($filename));
    fclose($handle);

    $stid = oci_parse($conn, "begin myproc(:p1, :p2); end;");
    $p1 = oci_new_descriptor($conn, OCI_D_LOB);
    $p2 = oci_new_descriptor($conn, OCI_D_LOB);
    
    oci_bind_by_name($stid, ":p1", $p1, -1, OCI_B_CLOB);
    oci_bind_by_name($stid, ":p2", $p2, -1, OCI_B_CLOB);
    $p1->writeTemporary($f, OCI_TEMP_BLOB);
    oci_execute($stid); -- Figure out OCI_NO_AUTO_COMMIT
    oci_commit($conn);
    echo $p2->load(); 
    
    $p1    ->close();
    $p2    ->close();
    oci_free_statement($stid);
    oci_close($conn);
?>

And perfect book about "PHP and Oracle" 
http://www.oracle.com/technetwork/topics/php/underground-php-oracle-manual-098250.html

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Anonymous ¶

7 years ago


Bear in mind that you cannot use reserved words for bind variables. Otherwise you'll get ORA-01745: Invalid host/bind variable name error.

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marki at trash-mail dot com ¶

8 years ago


Please note that in my earlier note about having oci_bind_by_name() in a function, this becomes a little more complicated when returning values like "UPDATE table SET bla='blubb' RETURNING id INTO :id". 

You can do it as follows:

<?php
function sql($q, &$vars_in=array(), &$vars_out=array()) {
  ...
  $stid = oci_parse($conn, $q);
  ...
  reset($vars_in);
  do {
    if (current($vars_in)===FALSE) {
      break;
    }
    $b = oci_bind_by_name($stid, key($vars_in), current($vars_in));
    // insert exception handling here
  } while (each($vars_in) !== FALSE);

  // VARS TO RETURN
  // we'll fix this to integer type because for now we need this for index IDs
  foreach ($vars_out as $k => $v) {
    $b = oci_bind_by_name($stid, $k, $vars_out[$k], -1, SQLT_INT);
    // insert exception handling here
  }

  ...
}
?>

Use like this:

<?php
$blubb = 'blubb';
$b = array(':bla' => $blubb);
$b_out = array(':id' => ''); // leave value empty
$x = sql($q, $b, $b_out);
$id = $b_out[':id'];
?>

(The point is: you would not be able to return anything into $b[':bla'] because $b[':bla'] becomes current($vars_in) inside sql() and cannot be written to.)

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marki at trash-mail dot com ¶

8 years ago


I had a query that was working properly at first sight, no errors on execute, nothing, but there were simply no results returned at runtime.

Be careful when putting the database commands into a function and binding your variables there while using oci_fetch_xxx() outside the function.

function sql($conn, $stmt, $var) {
  $stid = oci_parse($conn, $stmt);
  ...
  oci_bind_by_name($stid, ':val', $var);
  ...
}
sql($conn, $q, $var);
$row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS);

As you see from the definition of oci_bind_by_name(), $var needs to be passed as reference, so your function has to have this reference ready like this:

function sql($conn, $stmt, &$var) {
  $stid = oci_parse($conn, $stmt);
  ...
  oci_bind_by_name($stid, ':val', $var);
  ...
}

The background is that if you don't pass by reference (in which case $var inside the function is a copy of $var outside the function), then oci_bind_by_name() will work just fine at first glance.
However, since the oci_fetch statements that you use to actually get the data will reference the $var that has ceased to exist when the function finished. In fact, since the varbind seems to be a pointer, that pointer will point to an invalid location at that point and your variables won't be substitued in the SQL.

All this also means that:

1) You have to pass a variable, and not just a value

This doesn't work:

$stid = sql($conn, $q, array('bla'=>'blubb'));

This is better:

$vars = array('bla'=>'blubb');
$stid = sql($conn, $q, $vars);

2) Even when passing as reference to your helper function you cannot use e.g. foreach:

This doesn't work:

function sql($conn, $q, $vars) {
  ...
  foreach ($vars as $k => $v) {
    oci_bind_by_name($stid, $k, $v);
  }
  ...
}

Again, because $k and $v are local variables that will have disappeared once you perform an oci_fetch outside the function.

Instead you have to work the array in a more low-level way like this:

function sql($conn, $q, &$vars) {
  ...
  $stid = oci_parse($conn, $q);
  ...
  reset($vars);
  do {
    if (current($vars)===FALSE) { // end of array
      break;
    }
    $b = oci_bind_by_name($stid, key($vars), current($vars));
    if ($b === FALSE) {
      DIE('Could not bind var');
    }
  } while (each($vars) !== FALSE);
}
$binds = array(':bla1' => 'blubb1',
               ':bla2' => 'blubb2');
$stid = sql($conn, $q, $binds);
$row = oci_fetch_array($stid, OCI_ASSOC+OCI_RETURN_NULLS);

Wherever you oci_bind_by_name(), the pointer to the initial data has to exist from beginning to end.

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xorinox at gmx dot ch ¶

10 years ago


Working with Oracle and raw types in and out worked like the following for me.

<?php
  /*oracle procedure
  procedure open_session(
    i_instance_id in raw,
    o_session_id out raw,
    o_errcode out number,
    o_errmsg out varchar2
  );  
  */

  //open database
  $conn = DBOpen( DB_DEV_USER );

  //get session id
  $sql = "begin p_loader.open_session( hextoraw( :instance_id ), :session_id, :errcode, :errmsg ); end;";
  $stmt = oci_parse( $conn, $sql );
  $instanceId = DB_INSTANCE_ID;
  oci_bind_by_name( $stmt, ":instance_id", $instanceId, 1, SQLT_CHR );
  oci_bind_by_name( $stmt, ":session_id", $sessionId, 16, SQLT_BIN );
  oci_bind_by_name( $stmt, ":errcode", $errcode, 12, SQLT_INT );
  oci_bind_by_name( $stmt, ":errmsg", $errmsg, 4000, SQLT_CHR );
  
  oci_execute( $stmt );
  $sessionId = bin2hex( $sessionId ); //now this is a hex string
  
  //close database
  DBClose( $conn );
?>

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ajitsingh4u at gmail dot com ¶

16 years ago


//Calling Oracle Stored Procedure
//I assume that you have a users table and three columns in users table i.e. id, user, email in oracle
// For example I made connection in constructor, you can modify as per your requirement.
//http://www.devshed.com/c/a/PHP/Understanding-Destructors-in-PHP-5/1/
<?php
class Users{
    private $connection;
    
    public function __construct()
    {
        $this->connection = oci_connect("scott", "tiger", $db); // Establishes a connection to the Oracle server; 
    }

    public function selectUsers($start_index=1, $numbers_of_rows=20)
    {
        $sql ="BEGIN sp_users_select(:p_start_index, :p_numbers_of_rows, :p_cursor, :p_result); END;";
        $stmt = oci_parse($this->connection, $sql);

        //Bind in parameter
        oci_bind_by_name($stmt, ':p_start_index', $start_index, 20);
        oci_bind_by_name($stmt, ':p_numbers_of_rows', $numbers_of_rows, 20);

        //Bind out parameter
        oci_bind_by_name($stmt, ':p_result', $result, 20); // returns 0 if stored procedure succeessfully executed.

        //Bind Cursor
        $p_cursor = oci_new_cursor($this->connection);
        oci_bind_by_name($stmt, ':p_cursor', $p_cursor, -1, OCI_B_CURSOR);

        // Execute Statement
        oci_execute($stmt);
        oci_execute($p_cursor, OCI_DEFAULT);

        oci_fetch_all($p_cursor, $cursor, null, null, OCI_FETCHSTATEMENT_BY_ROW);

        echo $result;
        echo '<br>';
        var_dump($cursor); // $cursor is an associative array so we can use print_r() to print this data.
        // you can return data from this function to use it at your user interface.
    }

    public function deleteUser($id)
    {
        $sql ="BEGIN sp_user_delete(:p_id, :p_result); END;";
        $stmt = oci_parse($this->connection, $sql);

        // bind in and out variables
        oci_bind_by_name($stmt, ':p_id', $id, 20);
        oci_bind_by_name($stmt, ':p_result', $result, 20);

        //Execute the statement
        $check = oci_execute($stmt);

        if($check == true)
        $commit = oci_commit($this->connection);
        else
        $commit = oci_rollback($this->connection);

        return $result;
    }
    
    // You can make function for insert ,update using above two functions

}
?>

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Chris Delcamp ¶

17 years ago


This is an example of returning the primary key from an insert so that you can do inserts on other tables with foreign keys based on that value.  The date is just used to provied semi-unique data to be inserted.

$conn = oci_connect("username", "password")
$stmt = oci_parse($conn, "INSERT INTO test (test_msg) values (:data) RETURN test_id INTO :RV");
$data = date("d-M-Y H:i:s");
oci_bind_by_name($stmt, ":RV", $rv, -1, SQLT_INT);
oci_bind_by_name($stmt, ":data", $data, 24);
oci_execute($stmt);
print $rv;

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-1

Anonymous ¶

17 years ago


This is what the old OCI_B_* constants are now called:
(PHP 5.1.6 win32)

OCI_B_NTY - SQLT_NTY
OCI_B_BFILE - SQLT_BFILEE
OCI_B_CFILEE - SQLT_CFILEE
OCI_B_CLOB - SQLT_CLOB
OCI_B_BLOB - SQLT_BLOB
OCI_B_ROWID - SQLT_RDD
OCI_B_CURSOR - SQLT_RSET
OCI_B_BIN - SQLT_BIN
OCI_B_INT - SQLT_INT
OCI_B_NUM - SQLT_NUM

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-2

hfuecks at nospam dot org ¶

19 years ago


Note that there have been some changes on the constant identifiers and the documentation is currently not entirely accurate.

Running the following script;

<?php
foreach (array_keys(get_defined_constants()) as $const) {
    if ( preg_match('/^OCI_B_/', $const) ) {
        print "$const\n";
    }
}
?>

Under PHP 4.4.0 I get;

OCI_B_SQLT_NTY < renamed to OCI_B_NTY with PHP5
OCI_B_BFILE
OCI_B_CFILEE
OCI_B_CLOB
OCI_B_BLOB
OCI_B_ROWID
OCI_B_CURSOR
OCI_B_BIN

Under PHP 5.0.4 I get;

OCI_B_NTY
OCI_B_BFILE < docs are wrong right now
OCI_B_CFILEE < docs are wrong right now
OCI_B_CLOB
OCI_B_BLOB
OCI_B_ROWID
OCI_B_CURSOR
OCI_B_BIN < it's a mystery

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-1

adrian dot crossley at hesa dot ac dot uk ¶

15 years ago


Sometimes you get the error "ORA-01461: can bind a LONG value only for insert into a LONG column".  This error is highly misleading especially when you have no LONG columns or LONG values.

From my testing it seems this error can be caused when the value of a bound variable exceeds the length allocated.

To avoid this error make sure you specify lengths when binding varchars e.g. 
<?php
oci_bind_by_name($stmt,':string',$string, 256);
?>

And for numerics use the default length (-1) but tell oracle its an integer e.g. 
<?php
oci_bind_by_name($stmt,':num',$num, -1, SQLT_INT);
?>

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-1

jjeffman at cpovo.net ¶

10 years ago


It is very important to set up the maxlength of the returning parameter (:r), even when it is returning a number, otherwise the ORA-01460 exception (unimplemented or unreasonable conversion requested) may be raised.

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