PHP tools

phools.php

<?php

//! Encode all characters in every command line argument to their html entity equivalent:
//! (see http://stackoverflow.com/questions/3005116/how-to-convert-all-characters-to-their-html-entity-equivalent-using-php)

function toHtmlEntities($string)
{
    $convMap = array(0x000000, 0x10ffff, 0, 0xffffff); // could be extracted...
    return mb_encode_numericentity($string, $convMap, "UTF-8");
}

if ($argc > 1) {
    $howMany = count($argv);
    for ($i = 1; $i < $howMany; $i++) {
        echo toHtmlEntities($argv[$i]), PHP_EOL;
    }
}

//! Use Imagick to create a fixed size thumbnail by first scaling the image up or down and then
//! cropping a specified area from the center:

$tw = 185;
$th = 170;
$bn = 'false-blue';

$image = new Imagick($bn . '.jpg');
$image->cropThumbnailImage($tw, $th);
$image->writeImage($bn . ',small.jpg');

//! Output all arguments provided to a function:
function p()
{
    foreach (func_get_args() as $arg) {
        echo $arg . '<br />';
    }
}

//! MOD operator:
function mod($dividend, $divisor)
{
    $mod = $dividend % $divisor;
    return $mod >= 0 ? $mod : $mod + abs($divisor);
}