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43 lines
1.7 KiB
43 lines
1.7 KiB
<?php
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function array2json($arr) {
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if(function_exists('json_encode')) return json_encode($arr); //Lastest versions of PHP already has this functionality.
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$parts = array();
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$is_list = false;
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//Find out if the given array is a numerical array
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$keys = array_keys($arr);
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$max_length = count($arr)-1;
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if(($keys[0] == 0) and ($keys[$max_length] == $max_length)) {//See if the first key is 0 and last key is length - 1
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$is_list = true;
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for($i=0; $i<count($keys); $i++) { //See if each key correspondes to its position
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if($i != $keys[$i]) { //A key fails at position check.
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$is_list = false; //It is an associative array.
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break;
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}
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}
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}
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foreach($arr as $key=>$value) {
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if(is_array($value)) { //Custom handling for arrays
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if($is_list) $parts[] = array2json($value); /* :RECURSION: */
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else $parts[] = '"' . $key . '":' . array2json($value); /* :RECURSION: */
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} else {
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$str = '';
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if(!$is_list) $str = '"' . $key . '":';
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//Custom handling for multiple data types
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if(is_numeric($value)) $str .= $value; //Numbers
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elseif($value === false) $str .= 'false'; //The booleans
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elseif($value === true) $str .= 'true';
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else $str .= '"' . addslashes($value) . '"'; //All other things
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// :TODO: Is there any more datatype we should be in the lookout for? (Object?)
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$parts[] = $str;
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}
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}
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$json = implode(',',$parts);
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if($is_list) return '[' . $json . ']';//Return numerical JSON
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return '{' . $json . '}';//Return associative JSON
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}
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?>
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