mb_stripos
Function • Params and return types changed in PHP 8.0
Finds position of first occurrence of a string within another, case insensitive.
mb_stripos Function synopsis
mb_stripos(
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
$offset
OptionalTypeintDefault value0
The position in $haystack
to start searching.
A negative offset counts from the end of the string.
$encoding
OptionalType?stringDefault valuenull
Return value
Typeint|false
Return the numeric position of the first occurrence of
$needle in the $haystack
string, or false if $needle is not found.
Changes to the mb_stripos 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_stripos(
- $haystack,
+ string $haystack,
- $needle,
+ string $needle,
- $offset,
+ int $offset = 0,
- $encoding
+ ?string $encoding = null
- )
+ ): int|falsemb_stripos Function Availability
mb_stripos 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 |