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* http://www.php.net/manual/en/function.stristr.php |
* http://www.php.net/manual/en/function.stristr.php |
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<highlightSyntax> |
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<pre> |
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<?php |
<?php |
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$email = 'USER@EXAMPLE.com'; |
$email = 'USER@EXAMPLE.com'; |
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// outputs ER@EXAMPLE.com |
// outputs ER@EXAMPLE.com |
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?> |
?> |
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</highlightSyntax> |
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</pre> |
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Example 2. Testing if a string is found or not |
Example 2. Testing if a string is found or not |
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<highlightSyntax> |
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<pre> |
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<?php |
<?php |
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$string = 'Hello World!'; |
$string = 'Hello World!'; |
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// outputs: "earth" not found in string |
// outputs: "earth" not found in string |
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?> |
?> |
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</highlightSyntax> |
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</pre> |
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Example 3. Using a non "string" needle |
Example 3. Using a non "string" needle |
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<highlightSyntax> |
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<pre> |
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<?php |
<?php |
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$string = 'APPLE'; |
$string = 'APPLE'; |
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// outputs: APPLE |
// outputs: APPLE |
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?> |
?> |
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</highlightSyntax> |
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</pre> |
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[[Category:PHP]] |
[[Category:PHP]] |
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Latest revision as of 22:18, 22 June 2006
A PHP function to compare strings case-insensitive. Also see strstr.
stristr -- Case-insensitive strstr()
Description[edit]
string stristr ( string haystack, string needle )
Returns all of haystack from the first occurrence of needle to the end. needle and haystack are examined in a case-insensitive manner.
If needle is not found, returns FALSE.
If needle is not a string, it is converted to an integer and applied as the ordinal value of a character.
<highlightSyntax> <?php
$email = 'USER@EXAMPLE.com'; echo stristr($email, 'e');
// outputs ER@EXAMPLE.com ?> </highlightSyntax>
Example 2. Testing if a string is found or not <highlightSyntax> <?php
$string = 'Hello World!';
if(stristr($string, 'earth') === FALSE) {
echo '"earth" not found in string';
}
// outputs: "earth" not found in string ?> </highlightSyntax> Example 3. Using a non "string" needle <highlightSyntax> <?php
$string = 'APPLE'; echo stristr($string, 97); // 97 = lowercase a
// outputs: APPLE ?> </highlightSyntax>