mb_strstr
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
mb_strstr — Finds first occurrence of a string within another
Descrizione
string
$haystack,string
$needle,bool
$before_needle = false,?string
$encoding = null): string|false
mb_strstr() finds the first occurrence of
needle in haystack
and returns the portion of haystack.
If needle is not found, it returns false.
Elenco dei parametri
-
haystack -
The string from which to get the first occurrence of
needle -
needle -
The string to find in
haystack -
before_needle -
Determines which portion of
haystackthis function returns. If set totrue, it returns all ofhaystackfrom the beginning to the first occurrence ofneedle(excluding needle). If set tofalse, it returns all ofhaystackfrom the first occurrence ofneedleto the end (including needle). -
encoding -
Character encoding name to use. If it is omitted, internal character encoding is used.
Valori restituiti
Returns the portion of haystack,
or false if needle is not found.
Log delle modifiche
| Versione | Descrizione |
|---|---|
| 8.0.0 |
needle now accepts an empty string.
|
| 8.0.0 |
encoding is nullable now.
|
Vedere anche:
- stristr() - Versione insensibile alle maiuscole/minuscole di strstr
- strstr() - Trova la prima occorrenza di una stringa
- mb_stristr() - Finds first occurrence of a string within another, case insensitive
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