strripos
(PHP 5)
strripos — Find position of last occurrence of a case-insensitive string in a string
Description
Find position of last occurrence of a case-insensitive string in a string. Unlike strrpos(), strripos() is case-insensitive.
Parameters
- haystack
-
- needle
-
Note that the needle may be a string of one or more characters.
- offset
-
The offset parameter may be specified to begin searching an arbitrary number of characters into the string.
Negative offset values will start the search at offset characters from the start of the string.
Return Values
Returns the numerical position of the last occurence of needle . Also note that string positions start at 0, and not 1.
If needle is not found, FALSE is returned.
Deze functie kan FALSE teruggeven, maar ook een andere waarde die naar FALSE evalueert, zoals 0 of "". Gebruik de === operator om de teruggeven waarde van deze functie te testen.
Voorbeelden
Example#1 A simple strripos() example
<?php
$haystack = 'ababcd';
$needle = 'aB';
$pos = strripos($haystack, $needle);
if ($pos === false) {
echo "Sorry, we did not find ($needle) in ($haystack)";
} else {
echo "Congratulations!\n";
echo "We found the last ($needle) in ($haystack) at position ($pos)";
}
?>
Het resultaat van dit script is als volgt:
Congratulations! We found the last (aB) in (ababcd) at position (2)