<?php
$arr = array("ret"=>0,"data"=>array('a' => 1, 'b' => '2', 'c' => 3, 'd' => 4, 'e' => 5));
$json = json_encode($arr);
/**
* Formats a JSON string for pretty printing
*
* @param string $json The JSON to make pretty
* @param bool $html Insert nonbreaking spaces and <br />s for tabs and linebreaks
* @return string The prettified output
*/
function _format_json($json, $html = false) {
$tabcount = 0;
$result = '';
$inquote = false;
$ignorenext = false;
if ($html) {
$tab = "   ";
$newline = "<br/>";
} else {
$tab = "\t";
$newline = "\n";
}
for($i = 0; $i < strlen($json); $i++) {
$char = $json[$i];
if ($ignorenext) {
$result .= $char;
$ignorenext = false;
}else{
switch($char) {
case '{':
$tabcount++;
$result .= $char . $newline . str_repeat($tab, $tabcount);
break;
case '}':
$tabcount--;
$result = trim($result) . $newline . str_repeat($tab, $tabcount) . $char;
break;
case ',':
$result .= $char . $newline . str_repeat($tab, $tabcount);
break;
case '"':
$inquote = !$inquote;
$result .= $char;
break;
case '\\':
if ($inquote) $ignorenext = true;
$result .= $char;
break;
default:
$result .= $char;
}
}
}
return $result;
}
echo _format_json($json);
/*
{
 "ret": 0,
 "data": {
 "a": 1,
 "b": 2,
 "c": 3,
 "d": 4,
 "e": 5
 }
}
**/
?>