(PHP 5, PHP 7)
stripos — Find the position of the first occurrence of a case-insensitive substring in a string
Find the numeric position of the first occurrence of
needle in the haystack string.
Unlike the strpos(), stripos() is case-insensitive.
haystackThe string to search in.
needle
Note that the needle may be a string of one or
more characters.
If needle is not a string, it is converted to
an integer and applied as the ordinal value of a character.
offsetIf specified, search will start this number of characters counted from the beginning of the string. If the offset is negative, the search will start this number of characters counted from the end of the string.
Returns the position of where the needle exists relative to the beginnning of
the haystack string (independent of offset).
Also note that string positions start at 0, and not 1.
Returns FALSE if the needle was not found.
Această funcție poate întoarce valoarea Boolean FALSE, dar poate de
asemenea întoarce o valoare non-Boolean care evaluează în FALSE. Vă rugăm să
citiți secțiunea despre tipul Boolean
pentru informații suplimentare. Utilizați
operatorul === pentru a
verifica valoarea întoarsă de această funcție.
| Versiune | Descriere |
|---|---|
| 7.1.0 |
Support for negative offsets has been added.
|
Example #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";
}
?>
Notă: Această funcție acceptă și date binare.