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PHP class library for manipulating arrays

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PHP class library for manipulating arrays

<?php
class ArrayHelper{
    
    static function removeEmpty(& $arr, $trim = TRUE)
    {
        foreach ($arr as $key => $value)
        {
            if (is_array($value))
            {
                self::removeEmpty($arr[$key]);
            }
            else
            {
                $value = trim($value);
                if ($value == '')
                {
                    unset($arr[$key]);
                }
                elseif ($trim)
                {
                    $arr[$key] = $value;
                }
            }
        }
    }

Remove blank elements from the array (including elements with only blank characters)

Usage:

@code php

$arr = array('', 'test', ' ');

ArrayHelper::removeEmpty($arr);

dump($arr);

There will be only 'test' in the output result

@endcode

@param array $arr The array to be processed

@param boolean $trim Whether to call the trim function on the array elements

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