strcasecmp

Binary safe case-insensitive string comparison (PHP 4, PHP 5)
int strcasecmp ( string str1, string str2 )

Example 2451. strcasecmp() example

<?php

$var1 = "Hello";
$var2 = "hello";

if (strcasecmp($var1, $var2) == 0) {

    echo '$var1 is equal to $var2 in a case-insensitive string comparison';

}
?>

Related Examples ( Source code ) » strcasecmp

Code Examples / Notes » strcasecmp

The sample above is only true on some platforms that only use a simple 'C' locale, where individual bytes are considered as complete characters that are converted to lowercase before being differentiated. Other locales (see LC_COLLATE and LC_ALL) use the difference of collation order of characters, where characters may be groups of bytes taken from the input strings, or simply return -1, 0, or 1 as the collation order is not simply defined by comparing individual characters but by more complex rules. Don't base your code on a specific non null value returned by strcmp() or strcasecmp(): it is not portable. Just consider the sign of the result and be sure to use the correct locale!

strcasecmp

Binary safe case-insensitive string comparison (PHP 4, PHP 5) int strcasecmp ( string str1, string str2 )

Example 2451. strcasecmp() example

Related Examples ( Source code ) » strcasecmp

Code Examples / Notes » strcasecmp

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Binary safe case-insensitive string comparison (PHP 4, PHP 5)
int strcasecmp ( string str1, string str2 )