arraySwap PHP function
I needed an easy way to swap two elements of a PHP array and came up with this function. It returns either the array with the two elements swapped or False if there’s a problem.
PHP:
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/**
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* Swaps two elements of an array
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*
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* This function will return the boolean <i>False</i> if $arr_source is not an array or if $arr_source[$key1] or $arr_source[$key2] do not exist.
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* @param mixed $arr_source The source array
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* @param mixed $key1 The key of one of the two elements to swap
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* @param mixed $key2 The key of the second of the two elements to swap
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* @return mixed Array with the two elements swapped
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*/
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function arraySwap($arr_source, $key1, $key2)
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{
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{
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return false;
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}
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{
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return false;
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}
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$arr_tmp = $arr_source[$key1];
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$arr_source[$key1] = $arr_source[$key2];
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$arr_source[$key2] = $arr_tmp;
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return $arr_source;
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}
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