总是显示致命错误: Cannot use assign-op operators with string offsets

Question

问题描述

总是显示致命错误: Cannot use assign-op operators with string offsets,报错位置是$tf['final_time'][] = array('elt', $s)这一行，请问我该如何修改？

相关代码

   function index(){
        $start ='';
        $end ='';
        $tf ='';
        //            开始时间，结束时间
        if (input('start_time') != null && input('end_time') != null) {
            $start = input('start_time');
            $end = input('end_time');
//                两个时间都不为空
            $s = strtotime($start.' 00:00:00');
            $e = strtotime($end.' 23:59:59');
            $t = (int)$e-365*24*60*60;
            $tj['final_time'][] = array('egt', $s);
            $tj['final_time'][] = array('elt', $e);
            $tf['final_time'][] = array('elt', $s);
            $tf['final_time'][] = array('egt', $t);
            $tf['status']=1;

Answer 1

<?php
function index(){

    $start ='';
    $end ='';
    $tf = [];
    //            开始时间，结束时间
    if (input('start_time') != null && input('end_time') != null) {
        $start = input('start_time');
        $end = input('end_time');
// 两个时间都不为空

        $s = strtotime($start . ' 00:00:00');
        $e = strtotime($end . ' 23:59:59');
        $t = (int)$e - 365 * 24 * 60 * 60;
        $tj['final_time'][] = array('egt', $s);
        $tj['final_time'][] = array('elt', $e);
        $tf['final_time'][] = array('elt', $s);
        $tf['final_time'][] = array('egt', $t);
        $tf['status'] = 1;
    }

将$tf声名为数组或删掉这行

Answer 2

虽然php是弱语言，也不至于把字符串$tf当数组用吧