note 73138 deleted from ref.array by felipe

From: Date: Sun, 30 Dec 2007 19:28:05 +0000
Subject: note 73138 deleted from ref.array by felipe
References: 1  Groups: php.notes 
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Note Submitter: Colin ---- I couldn't get the previous set pointer functions working for whatever reason so I modifed. I trigger errors if needed but obviously you can do whatever // setPointer - Sets the pointer to the provided $key in provided $array final private function setPointer(&$array, $set_key) { // Check if $array is an array if (!is_array($array)) { trigger_error('$array must be an array', E_USER_ERROR); } // Check if $key is in $array if (!array_key_exists($set_key, $array)) { trigger_error('$set_key must exist in $array', E_USER_ERROR); } // Set array pointer to first element reset($array); // Cycle through array while ($set_key != key($array)) { // Advance the pointer next($array); } } Try with: $array = array(); $array[0] = 'zero'; $array[1] = 'one'; $array[2] = 'two'; $array[3] = 'three'; // Set the pointer setPointer($array, 1); // Display elements echo current($array); // Outputs 'one' echo next($array); // Outputs 'two'

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