Isn't there null in the post form data? Why does foreach not report an error? ? ? ?
After I executed it, I got the following error message: Invalid argument supplied for foreach()
From [PHPdiscussion group] 2018-07-11 10:23:04 0 5 1508
From [PHPdiscussion group] 2020-07-13 10:07:08 0 2 1508
php json_encode function encrypts a two-dimensional array and returns false!!!!!????
From [PHPdiscussion group] 2018-08-03 17:42:23 0 3 1508
From [PHPdiscussion group] 2018-06-05 16:35:14 0 0 1508
<form method="post"><input type="text" name="cj"><input type=&qu...
From [PHPdiscussion group] 2017-07-27 11:17:37 0 2 1507
Compile error using phpdesigner
From [PHPdiscussion group] 2017-07-14 17:23:20 0 3 1507
From [PHPdiscussion group] 2019-04-03 19:49:31 0 3 1507
From [PHPdiscussion group] 2019-07-23 09:57:37 0 0 1507
<?PHP$chenji=rand(0,100);if($chenji>=0 &&$chenji<60){echo'passed';}elseif ($chenji>=60 &am...
From [PHPdiscussion group] 2018-01-23 00:27:23 0 9 1506
编码是utf-8.想要的判断规则:字符串不能含有中文逗号。例如$str = ",123"; //此处逗号为中文逗号$str_arr = explode(",",$str);最后打印...
From [PHPdiscussion group] 2017-03-10 09:13:16 0 2 1506
How to remove blob pictures from mysql
How to display blob pictures stored in mysql database on php, it is best to have a complete example
From [PHPdiscussion group] 2018-02-08 14:59:03 1 2 1506
From [PHPdiscussion group] 2017-07-30 15:00:11 1 2 1506
Why can't phpstudy's Apache start?
From [PHPdiscussion group] 2018-10-14 12:17:24 0 5 1505
From [PHPdiscussion group] 2018-08-23 22:16:49 1 1 1505