Description
int
stripos ( string haystack, string needle [, int offset])
Returns the numeric position of the first occurrence of
needle in the haystack
string. Unlike strpos(),
stripos() is case-insensitive.
Note that the needle may be a string of one or
more characters.
If needle is not found,
stripos() will return boolean FALSE.
| Avvertimento |
Questa funzione puņ
restituire il Booleano FALSE, ma puņ anche restituire un valore non-Booleano valutato
come FALSE, come ad esempio 0 o
"". Per favore fare riferimento alla sezione Booleans per maggiori
informazioni. Usare l'operatore
=== per controllare il valore restituito da questa
funzione. |
Esempio 1. stripos() examples
<?php
$findme = 'a';
$mystring1 = 'xyz';
$mystring2 = 'ABC';
$pos1 = stripos($mystring1, $findme);
$pos2 = stripos($mystring2, $findme);
// Nope, 'a' is certainly not in 'xyz'
if ($pos1 === false) {
echo "The string '$findme' was not found in the string '$mystring1'";
}
// Note our use of ===. Simply == would not work as expected
// because the position of 'a' is the 0th (first) character.
if ($pos2 !== false) {
echo "We found '$findme' in '$mystring2' at position $pos2";
}
?>
|
|
If needle is not a string, it is converted
to an integer and applied as the ordinal value of a character.
The optional offset parameter allows you
to specify which character in haystack to
start searching. The position returned is still relative to the
the beginning of haystack.
See also strpos(), strrpos(),
strrchr(), substr(),
stristr(), strstr(),
strripos() and str_ireplace().
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