trim

FunctionParams changed in PHP 8.6

Strip whitespace (or other characters) from the beginning and end of a string.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6
Improved

trim Function synopsis

trim(string $string, string $characters = " \f\n\r\t\v\x00"): string

Parameters

$string

Typestring

The string that will be trimmed.

$characters

OptionalTypestringDefault value" \f\n\r\t\v\x00"

Return value

Typestring

Changes to the trim Function

PHP 8.6

  • Parameter default value changed for position #2 ($characters): " \n\r\t\v\x00" to " \f\n\r\t\v\x00"
- trim(string $string, string $characters = " \n\r\t\v\x00"): string
+ trim(string $string, string $characters = " \f\n\r\t\v\x00"): string

PHP 8.0

  • Return type added: string
  • Parameter name of parameter #1 changed: $str to $string
  • Parameter type added for parameter #1 ($string): string
  • Parameter name of parameter #2 changed: $character_mask to $characters
  • Parameter type added for parameter #2 ($characters): string
  • Parameter default value added for position #2 ($characters): " \n\r\t\v\x00"
- trim($str, $character_mask)
+ trim(string $string, string $characters = " \n\r\t\v\x00"): string

trim Function Availability

PHP VersionAvailability
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