PHP 5.6.0 released

sql_regcase

(PHP 4, PHP 5)

sql_regcaseMake regular expression for case insensitive match

Description

string sql_regcase ( string $string )

Creates a regular expression for a case insensitive match.

Warning

This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged.

Parameters

string

The input string.

Return Values

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.

Examples

Example #1 sql_regcase() example

<?php
echo sql_regcase("Foo - bar.");
?>

The above example will output:

[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.

Notes

Note:

As of PHP 5.3.0, the regex extension is deprecated in favor of the PCRE extension. Calling this function will issue an E_DEPRECATED notice. See the list of differences for help on converting to PCRE.

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User Contributed Notes 2 notes

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edge at gts dot smtn dot stavropol dot ru
11 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]"
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0
phpcomment at revmaps dot no-ip dot biz
6 months ago
This function naivley replaces the letters in your expression.
if your expression uses [] already using this will probably break it
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