php_strip_whitespace

Function • Params and return types changed in PHP 8.0

Return source with stripped comments and whitespace.

PHP 5

PHP 7

Improved

PHP 8.1

PHP 8.2-8.3

PHP 8.4

PHP 8.5

PHP 8.6

`php_strip_whitespace` Function synopsis

php_strip_whitespace(string $filename): string

Parameters

`$filename`

Typestring

Path to the PHP file.

Return value

Typestring

The stripped source code will be returned on success, or an empty string on failure.

This function respects the value of the
[`short_open_tag`](/codex/ini-short_open_tag)    ini directive.

Changes to the `php_strip_whitespace` Function

PHP 8.0

Return type added: string
Parameter name of parameter #1 changed: $file_name to $filename
Parameter type added for parameter #1 ($filename): string

- php_strip_whitespace($file_name)
+ php_strip_whitespace(string $filename): string

`php_strip_whitespace` 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