URL中文参数，JSON转换，PHP赋值JS

    var jsonProps = {
        "dispMode":dispMode,
        "autoRun":autoRun,
        "clientPath":encodeURI(clientPath),
        "remark":encodeURI(remark)
    };

    $.ajax({
         url:"./process/writeTask.php",
         data:"proType=setTask&taskId=" + taskId + "&props=" + JSON.stringify(jsonProps),

$props = json_decode(str_replace("\\", "\\\\", urldecode($_REQUEST['props'])), true);// 注意JSON处理\需要转义一下

var oldClientPath = '<?php echo str_replace("\\", "\\\\", $clientPath); ?>';

// 如果$clientPath含有\，需要转义