function php7_regcase($str)
{
if (empty($str))
return '';
$chars = str_split($str);
foreach ($chars as $char) {
if (preg_match("/[A-Za-z]/", $char)) {
$str_upper = mb_strtoupper($char, 'UTF-8');
$str_lower = mb_strtolower($char, 'UTF-8');
$resp[] = "[{$str_upper}{$str_lower}]";
} else {
$resp[] = $char;
}
}
return implode('', $resp);
}
sql_regcase
(PHP 4, PHP 5)
sql_regcase — Make regular expression for case insensitive match
Avertizare
Această funcție este ÎNVECHITĂ începând cu PHP 5.3.0 și ELIMINATĂ în PHP 7.0.0.
Variante alternative pentru această funcție sunt:
Descrierea
sql_regcase
( string
$string
) : stringCreates a regular expression for a case insensitive match.
Parametri
-
string -
The input string.
Valorile întoarse
Returns a valid regular expression which will match
string, ignoring case. This expression is
string with each alphabetic character converted to
a bracket expression; this bracket expression contains that character's
uppercase and lowercase form. Other characters remain unchanged.
Exemple
Example #1 sql_regcase() example
<?php
echo sql_regcase("Foo - bar.");
?>
Exemplul de mai sus va afișa:
[Ff][Oo][Oo] - [Bb][Aa][Rr].
This can be used to achieve case insensitive pattern matching in products which support only case sensitive regular expressions.
add a note
User Contributed Notes 3 notes
fernandovaller at gmail dot com ¶
4 years ago
edge at gts dot smtn dot stavropol dot ru ¶
21 years ago
if you set right locale:
setlocale(LC_CTYPE,"ru_RU.KOI8-R");
print sql_regcase("Цffnung");
will output:
"[Цц][Ff][Ff][Nn][Uu][Nn][Gg]"
phpcomment at revmaps dot no-ip dot biz ¶
10 years ago
This function naivley replaces the letters in your expression.
if your expression uses [] already using this will probably break it
