(PHP 4 >= 4.0.6, PHP 5, PHP 7)
mb_strpos — Find position of first occurrence of string in a string
mb_strpos ( string $haystack , string $needle [, int $offset = 0 [, string|null $encoding = null ]] ) : int|false
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
The encoding parameter is the character encoding. If it is omitted or null, the internal character encoding value will be used.
Returns the numeric position of the first occurrence of needle in the haystack string. If needle is not found, it returns false.
| Version | Description |
|---|---|
| 8.0.0 | encoding is nullable now. |
| 7.1.0 | Support for negative offsets has been added. |
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https://www.php.net/manual/en/function.mb-strpos.php