mb_strpos
Function • Params and return types changed in PHP 8.0
Find position of first occurrence of string in a string.
mb_strpos Function synopsis
mb_strpos(
string $haystack,
string $needle,
int $offset = 0,
?string $encoding = null
): int|falseParameters
$haystack
Typestring
The string from which to get the position of the first occurrence
of $needle.
$needle
Typestring
The string to find in $haystack. In contrast
with strpos, numeric values are not applied
as the ordinal value of a character.
$offset
OptionalTypeintDefault value0
The search offset. If it is not specified, 0 is used. A negative offset counts from the end of the string.
$encoding
OptionalType?stringDefault valuenull
Return value
Typeint|false
Returns the numeric position of
the first occurrence of $needle in the
$haystack string. If
$needle is not found, it returns false.
Changes to the mb_strpos Function
PHP 8.0
- Return type added:
int|false - Parameter type added for parameter #1 (
$haystack):string - Parameter type added for parameter #2 (
$needle):string - Parameter type added for parameter #3 (
$offset):int - Parameter default value added for position #3 (
$offset):0 - Parameter type added for parameter #4 (
$encoding):?string - Parameter default value added for position #4 (
$encoding):null
mb_strpos(
- $haystack,
+ string $haystack,
- $needle,
+ string $needle,
- $offset,
+ int $offset = 0,
- $encoding
+ ?string $encoding = null
- )
+ ): int|falsemb_strpos Function Availability
mb_strpos Function Availability| PHP Version | Availability |
|---|---|
| PHP 8.6Upcoming Release | Yes |
| PHP 8.5Supported (Latest) | Yes |
| PHP 8.4Supported | Yes |
| PHP 8.3Security-Fixes Only | Yes |
| PHP 8.2Security-Fixes Only | Yes |
| PHP 8.1Unsupported | Yes |
| PHP 8.0Unsupported | Yes |
| PHP 7.4Unsupported | Yes |
| PHP 7.3Unsupported | Yes |
| PHP 7.2Unsupported | Yes |
| PHP 7.1Unsupported | Yes |
| PHP 7.0Unsupported | Yes |
| PHP 5.6Unsupported | Yes |
| PHP 5.5Unsupported | Yes |
| PHP 5.4Unsupported | Yes |
| PHP 5.3Unsupported | Yes |