PHP-Handbuch: Return source with stripped comments and whitespace

Beschreibung

string php_strip_whitespace ( string $filename )

Returns the PHP source code in filename with PHP comments and whitespace removed. This may be useful for determining the amount of actual code in your scripts compared with the amount of comments. This is similar to using php -w from the commandline.

Parameter-Liste

filename: Path to the PHP file.

Rückgabewerte

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

Hinweis:
This function respects the value of the short_open_tag ini directive.

Hinweis:
This function works as described as of PHP 5.0.1. Before this it would only return an empty string. For more information on this bug and its prior behavior, see bug report » #29606.

Beispiele

Beispiel #1 php_strip_whitespace example


<?php
// PHP comment here

/*
 * Another PHP comment
 */

echo        php_strip_whitespace(__FILE__);
// Newlines are considered whitespace, and are removed too:
do_nothing();
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

<?php
 echo php_strip_whitespace(__FILE__); do_nothing(); ?>

Notice the PHP comments are gone, as are the whitespace and newline after the first echo statement.