PHP built in functions map

sameer — Fri, 16 Jan 2009 07:52:44 +0000

Wordle is a online Java Applet for generating word clouds. The application is simple. You enter a bunch of text and Wordle does the rest. The applet provides options to change color, font and layout. Just for fun I created a Wordle cloud to display php’s built in functions. Two samples are shown below. The size of the font in the cloud is proportional to the number of functions starting with the particular name.

Download PDF versions.

The word list to generate the cloud was obtained by the following code:

$functions_list = get_defined_functions();
 
foreach($functions_list['internal'] as $function_name) {
    echo($function_name) . "\n";
}

To see how many functions start with a particular name the following code was used:

$functions_list = get_defined_functions();
$keys = array();
 
foreach($functions_list['internal'] as $function_name) {
    $pieces = explode("_", $function_name);
    array_key_exists($pieces[0], $keys) ? $keys[$pieces[0]]++ : $keys[$pieces[0]] = 1;
}
 
arsort($keys);
print_r($keys);

code-diesel » visualization

PHP built in functions map