php json转数组出错

php json转数组出错求助
1：先输出json

<br />//组合医生信息JSON<br />$jsonDoctorInfo  = "{\"mecdoctor\":[";<br />$jsonDoctorInfo .= "{\"doctorId\":\"".$doctorId."\",\"doctorName\":\"".$strDoctorName."\", \"doctorprice\":\"".$strPrice."\",\"expertise\":\"".$strExpertise."\",\"departments\":\"".$strdepartments."\",\"doctorTitle\":\"".$strTitle."\",\"doctorPhoto\":\"".$strDoctorPhoto."\"}";<br />$jsonDoctorInfo .= "]}";<br />

2：获取并decode
$jsonGetDoctorInfoData = json_encode($jsonGetDoctorInfoData);
$objGetDoctorInfoData  = json_decode($jsonGetDoctorInfoData);
输出：

<br />{"mecdoctor":[{"doctorId":"","doctorName":"XXXX", "doctorprice":"122","expertise":"XXXXX","departments":"医内科","doctorTitle":"主任医师","doctorPhoto":"hmh"}]}<br /><br />

3：将json转换成数组

<br />//解析JSON数据<br />	function _json_decode($json){<br />		$comment = false;<br />		$out = '$x=';<br />		for ($i=0; $i<strlen($json);$i++){<br />			if (!$comment){<br />				if ( ($json[$i] == '{') || ($json[$i] == '[') )<br />					$out .= ' array(';<br />				else if (($json[$i] == '}') || ($json[$i] == ']'))<br />					$out .= ')';<br />				else if ($json[$i] == ':')<br />					$out .= '=>';<br />				else<br />					$out .= $json[$i];          <br />			}else<br />				$out .= $json[$i];<br />			if($json[$i]== '"' && $json[($i-1)]!="\\")<br />				$comment = !$comment;<br />		}<br />		eval($out.";");<br />		<br />		return $x;<br />	}<br />

4：出现问题
Parse error: syntax error, unexpected T_DOUBLE_ARROW in /home/u945504094/public_html/config/config.inc.php(876) : eval()'d code on line 1

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------解决方案--------------------
没有问题呀

$s = '{"mecdoctor":[{"doctorId":"","doctorName":"XXXX", "doctorprice":"122","expertise":"XXXXX","departments":"医内科","doctorTitle":"主任医师","doctorPhoto":"hmh"}]}';<br /><br />print_r(_json_decode($s));<br /><br />    function _json_decode($json){<br />        $comment = false;<br />        $out = '$x=';<br />        for ($i=0; $i<strlen($json);$i++){<br />            if (!$comment){<br />                if ( ($json[$i] == '{') <br><font color='#FF8000'>------解决方案--------------------</font><br> ($json[$i] == '[') )<br />                    $out .= ' array(';<br />                else if (($json[$i] == '}') <br><font color='#FF8000'>------解决方案--------------------</font><br> ($json[$i] == ']'))<br />                    $out .= ')';<br />                else if ($json[$i] == ':')<br />                    $out .= '=>';<br />                else<br />                    $out .= $json[$i];          <br />            }else<br />                $out .= $json[$i];<br />            if($json[$i]== '"' && $json[($i-1)]!="\\")<br />                $comment = !$comment;<br />        }<br />        eval($out.";");<br />         <br />        return $x;<br />    }<br />

Array<br>(<br>    [mecdoctor] => Array<br>        (<br>            [0] => Array<br>                (<br>                    [doctorId] => <div class="clear">
                 
              
              
        
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