(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)
mb_strpos — Find position of first occurrence of string in a string
Finds position of the first occurrence of a string in a string.
Performs a multi-byte safe strpos() operation based on number of characters. The first character's position is 0, the second character position is 1, and so on.
haystack
The string being checked.
needle
The string to find in haystack
. In contrast with strpos(), numeric values are not applied as the ordinal value of a character.
offset
The search offset. If it is not specified, 0 is used. A negative offset counts from the end of the string.
encoding
Der Parameter encoding
legt die Zeichenkodierung fest. Wird er nicht übergeben, so wird die interne Zeichenkodierung genutzt.
Returns the numeric position of the first occurrence of needle
in the haystack
string. If needle
is not found, it returns false
.
Version | Beschreibung |
---|---|
8.0.0 | needle akzeptiert nun eine leere Zeichenkette. |
8.0.0 | encoding ist nun nullable (akzeptiert den null -Wert). |
7.1.0 | Support for negative offset s has been added. |