token_get_all

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

token_get_all — Belirtilen kaynağı PHP dizgeciklerine ayırır

Açıklama

token_get_all(string $kod, int $seçenekler = 0): array

Belirtilen kod dizgesi, Zend motorunun sözdizimsel tarayıcısı kullanılarak PHP dil dizgeciklerine çözümlenir.

Dizgeciklerin listesi için Çözümleyici Dizgeciklerinin Listesi sayfasına bakınız veya bir dizgecik değerini dizgesel gösterimine dönüştürmek için token_name() işlevini kullanınız.

Bağımsız Değişkenler

kod

Çözümlenecek PHP kaynak kodu.

seçenekler

Geçerli seçenekler:

TOKEN_PARSE - Belirli bağlamlarda dahili kullanıma ayrılmış sözcükleri kullanma yeteneğini onaylar.

Dönen Değerler

Dizgecik betimleyicilerinden oluşan bir dizi. Her dizgecik betimleyicisi ya tek bir karakterden (;, ., >, ! gibi) oluşur ya da üç elemanlı bir diziden; 0. elemanda dizgecik indisi, 1. elemanda özgün dizgeciğin dizgesel içeriği ve 2. elemanda satır numarası bulunur.

Örnekler

Örnek 1 - token_get_all() örneği

<?php
$tokens = token_get_all('<?php echo; ?>');

foreach ($tokens as $token) {
    if (is_array($token)) {
        echo "Line {$token[2]}: ", token_name($token[0]), " ('{$token[1]}')", PHP_EOL;
    }
}
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

Line 1: T_OPEN_TAG ('<?php ')
Line 1: T_ECHO ('echo')
Line 1: T_WHITESPACE (' ')
Line 1: T_CLOSE_TAG ('?>')

Örnek 2 - token_get_all() yanlış kullanım örneği

<?php
$tokens = token_get_all('/* comment */');

foreach ($tokens as $token) {
    if (is_array($token)) {
        echo "Line {$token[2]}: ", token_name($token[0]), " ('{$token[1]}')", PHP_EOL;
    }
}
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

Line 1: T_INLINE_HTML ('/* comment */')

Yukarıdaki örnekte dizge beklendiği gibi T_COMMENT ile değil T_INLINE_HTML ile çözümlenmiştir.Bunun sebebi sağlanan kodda hiç başlangıç etiketi bulunmamasıdır. Bu, normal bir dosyada PHP etiketlerinin dışına bir açıklama koymaya eşdeğerdir.

Örnek 3 - Dahili kullanıma ayrılmış sözcük kullanan sınıf üzerinde token_get_all()

<?php
$source = <<<'code'
<?php

class A
{
    const PUBLIC = 1;
}
code;

$tokens = token_get_all($source, TOKEN_PARSE);

foreach ($tokens as $token) {
    if (is_array($token)) {
        echo token_name($token[0]) , PHP_EOL;
    }
}
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

T_OPEN_TAG
T_WHITESPACE
T_CLASS
T_WHITESPACE
T_STRING
T_CONST
T_WHITESPACE
T_STRING
T_LNUMBER

TOKEN_PARSE olmaksızın, sondan bir önceki simgeleştirici (T_STRING) T_PUBLIC olurdu.

Ayrıca Bakınız

PhpToken::tokenize() - Belirtilen kaynağı PhpToken nesneleri tarafından temsil edilen PHP dizgeciklerine böler
token_name() - Belirtilen PHP dizgeciğinin simgesel ismini döndürür

add a note

User Contributed Notes 8 notes

down

gomodo at free dot fr ¶

15 years ago


Yes, some problems (On WAMP, PHP 5.3.0 ) with get_token_all() 

1 : bug line numbers
 Since PHP 5.2.2 token_get_all()  should return Line numbers in element 2..
.. but for instance (5.3.0 on WAMP), it work perfectly only with PHP code (not HMTL miwed), but if you have some T_INLINE_HTML detected by token_get_all() ,  sometimes you find wrongs line numbers  (return next line)... :(

2: bug warning message can impact loops
Warning with php code uncompleted (ex : php code line by line) :
for example if a comment tag is not closed  token_get_all()  can block loops on this  warning :
Warning: Unterminated comment starting line

This problem seem not occur in CLI mod (php command line), but only in web mod.

Waiting more stability, used token_get_all()  only on PHP code (not HMTL miwed) :
First extract entirely PHP code (with open et close php tag), 
Second use token_get_all()  on the pure PHP code.

3 : Why there not function to extract PHP code (to extract HTML, we have Tidy..)?

Waiting, I used a function :

The code at end this post :
http://www.developpez.net/forums/d786381/php/langage/
fonctions/analyser-fichier-php-token_get_all/

This function not support :
- Old notation :  "<?  ?>" and "<% %>"
- heredoc syntax 
- nowdoc syntax (since PHP 5.3.0)

down

Dennis Robinson from basnetworks dot net ¶

15 years ago


I wanted to use the tokenizer functions to count source lines of code, including counting comments.  Attempting to do this with regular expressions does not work well because of situations where /* appears in a string, or other situations.  The token_get_all() function makes this task easy by detecting all the comments properly.  However, it does not tokenize newline characters.  I wrote the below set of functions to also tokenize newline characters as T_NEW_LINE.

<?php

define('T_NEW_LINE', -1);

function token_get_all_nl($source)
{
    $new_tokens = array();

    // Get the tokens
    $tokens = token_get_all($source);

    // Split newlines into their own tokens
    foreach ($tokens as $token)
    {
        $token_name = is_array($token) ? $token[0] : null;
        $token_data = is_array($token) ? $token[1] : $token;

        // Do not split encapsed strings or multiline comments
        if ($token_name == T_CONSTANT_ENCAPSED_STRING || substr($token_data, 0, 2) == '/*')
        {
            $new_tokens[] = array($token_name, $token_data);
            continue;
        }

        // Split the data up by newlines
        $split_data = preg_split('#(\r\n|\n)#', $token_data, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);

        foreach ($split_data as $data)
        {
            if ($data == "\r\n" || $data == "\n")
            {
                // This is a new line token
                $new_tokens[] = array(T_NEW_LINE, $data);
            }
            else
            {
                // Add the token under the original token name
                $new_tokens[] = is_array($token) ? array($token_name, $data) : $data;
            }
        }
    }

    return $new_tokens;
}

function token_name_nl($token)
{
    if ($token === T_NEW_LINE)
    {
        return 'T_NEW_LINE';
    }

    return token_name($token);
}

?>

Example usage:

<?php

$tokens = token_get_all_nl(file_get_contents('somecode.php'));

foreach ($tokens as $token)
{
    if (is_array($token))
    {
        echo (token_name_nl($token[0]) . ': "' . $token[1] . '"<br />');
    }
    else
    {
        echo ('"' . $token . '"<br />');
    }
}

?>

I'm sure you can figure out how to count the lines of code, and lines of comments with these functions.  This was a huge improvement on my previous attempt at counting lines of code with regular expressions.  I hope this helps someone, as many of the user contributed examples on this website have helped me in the past.

down

Ivan Ustanin ¶

6 years ago


As a caution: when using TOKEN_PARSE with an invalid php-file, one can get an error like this:
Parse error: syntax error, unexpected '__construct' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in  on line 15
Notice the missing filename as this function accepts a string, not a filename and thus has no idea of the latter.
However an exception would be more appreciated.

down

Theriault ¶

8 years ago


The T_OPEN_TAG token will include the first trailing newline (\r, \n, or \r\n), tab (\t), or space. Any additional space after this token will be in a T_WHITESPACE token.

The T_CLOSE_TAG token will include the first trailing newline (\r, \n, or \r\n; as described here http://php.net/manual/en/language.basic-syntax.instruction-separation.php). Any additional space after this token will be in a T_INLINE_HTML token.

down

nicolas dot grekas+php at gmail dot com ¶

17 years ago


Well, there is a way to parse for errors. See
http://www.php.net/manual/function.php-check-syntax.php#77318

down

-3

bart ¶

7 years ago


Not all tokens are returned as an array. The rule appears to be that if a token is not variable, but instead it is one particular constant string, it is returned as a string instead. You don't get a line number. This is the case for braces( "{", "}"), parentheses ("(", ")"), brackets ("[", "]"), comma (","), semi-colon (";"), and a whole slew of operator signs ("!", "=", "+", "*", "/", ".", "+=", ...).

down

-9

kevin at metalaxe dot com ¶

16 years ago


Rogier, thanks for that fix. This bug still exists in php 5.2.5. I did notice though that it is possible for a notice to pop up from your code. Changing this line:

            $temp[] = $tokens[0][2];

To read this:

            $temp[] = isset($tokens[0][2])?$tokens[0][2]:'unknown';

fixes this notice.

down

-11

rogier ¶

16 years ago


Complementary note to code below:
Note that only the FIRST 2 (or 3, if needed) array elements will be updated. 

Since I only encountered incorrect results on the FIRST occurence of T_OPEN_TAG, I wrote this quick fix.
Any other following T_OPEN_TAG are, on my testing system (Apache 2.0.52, PHP 5.0.3), parsed correctly.

So, This function assumes only a possibly incorrect first T_OPEN_TAG.
Also, this function assumes the very first element (and ONLY the first element) of the token array to be the possibly incorrect token.
This effectively translates to the first character of the tokenized source to be the start of a php script opening tag '<', followed by either 'php' OR '%' (ASP_style)

add a note