<?php 

​

#

# strip.php /path/to/file key_name

# 

# Takes a file as input and a string prefix; reads

# the file as a serialized data blob and removes a

# key with name key_name from the hash.

# Serializes again and writes output to stdout.

# 

​

$file = $_SERVER['argv'][1];

$key = $_SERVER['argv'][2];

​

function remove_key($array, $name) {

    if (array_key_exists($name, $array)) {

        unset($array[$name]);

    }

​

    return $array;

}

​

$input = file_get_contents($file);

​

# Special case for /etc/pear.conf.

if (strncmp($input, "#PEAR_Config 0.9\n", 17) == 0) {

    echo substr($input, 0, 17);

    $s = substr($input, 17);

} else {

    $s = $input;

}

​

echo serialize(remove_key(unserialize($s), $key));

​

?>