PHP处理JSON字符串key缺少双引号的解决方法

PHP教程
<?php
$data = array('name'=>'fdipzone');
echo json_encode($data);            // {"name":"fdipzone"}
print_r(json_decode(json_encode($data),true)); //Array ( [name] => fdipzone )
?>

PHP教程
<?php
$str = '{"name":"fdipzone"}';
var_dump(json_decode($str,true)); // array(1) { ["name"]=> string(8) "fdipzone" }
$str1 = '{name:"fdipzone"}';
var_dump(json_decode($str1,true)); // NULL
?>

PHP教程
<?php
/** 兼容key没有双引括起来的JSON字符串解析
* @param String $str JSON字符串
* @param boolean $mod true:Array,false:Object
* @return Array/Object
*/
function ext_json_decode($str,$mode=false){
  if(preg_match('/w:/',$str)){
    $str = preg_replace('/(w+):/is','"$1":',$str);
  }
  return json_decode($str,$mode);
}
$str = '{"name":"fdipzone"}';
var_dump(ext_json_decode($str,true)); // array(1) { ["name"]=> string(8) "fdipzone" }
$str1 = '{name:"fdipzone"}';
var_dump(ext_json_decode($str1,true)); // array(1) { ["name"]=> string(8) "fdipzone" }
?>