IF判断条件语句中条件的单等号=与双等号==有什么样的差别?

From [PHPdiscussion group] 2016-12-16 17:52:53 0  1  3246

Is there anyone who has developed a second-hand car trading platform (PHP)?

Has anyone developed a second-hand car trading platform (PHP) or a second-hand house trading platform? learn l...

From [PHPdiscussion group] 2018-03-19 18:32:41 0  0  3223

How to save rich text editor to database?

How to save rich text editor to database? In what format is it saved? How to read?

From [PHPdiscussion group] 2017-11-01 12:10:19 0  1  3217

Why can't request get the value passed by ajax?

ajax部分：$.ajax({    type:"post",    url:"{:url('Contact/sendEmail')}",    data:"userna...

From [PHPdiscussion group] 2018-04-25 13:43:26 0  8  3197

Why am I getting an undefined array index?

as follows

From [PHPdiscussion group] 2018-08-10 17:24:38 0  8  3187

运行环境安装完成后，我们的php文件放在哪里，怎么运行？

运行环境安装完成后，我们的php文件放在哪里，怎么运行？

From [PHPdiscussion group] 2017-02-15 09:27:11 0  4  3174

No input file specified. How to solve this?

No input file specified. How to solve this?

From [PHPdiscussion group] 2018-12-21 16:34:22 0  8  3113

看到一个例子,打开文件有写到一个rb,这个是什么意思？

$fp = fopen('./text.txt', 'rb'); while(!feof($fp)) {    &nb...

From [PHPdiscussion group] 2016-12-17 14:22:00 0  2  3105

PHP入门问题：var_dump($iphone);和unset($a);输出

<?php$iphone = '手机';var_dump($iphone);$a = '111';unset($a);?>问题1：为什么输出是 string(6) &...

From [PHPdiscussion group] 2017-02-26 17:00:33 0  2  3097

phpstudy pro small leather panel often reports this nginx: [emerg] CreateFile【Urgent】

Masters, how to solve this error~

From [PHPdiscussion group] 2021-07-08 00:54:21 0  2  3062

Does anyone know how to use WeQing to develop public accounts for the second time?

I just came into contact with WeQing. I installed WeQing on the server, bound the official account, and downlo...

From [PHPdiscussion group] 2018-03-26 15:49:15 0  4  3053

How to achieve Chinese-English translation of the entire website?

In a recent project, a website needs to be switched between Chinese and English. It has been a long time since...

From [PHPdiscussion group] 2017-10-27 11:11:36 0  6  3050

Database connection failed SQLSTATE [HY000][1102]incorrect database name 'study '

<?php header("Content-type:text/html;charset=utf-8"); //Set encoding $servername = "localhos...

From [PHPdiscussion group] 2018-02-27 20:08:22 0  4  3028

提示SQLSTATE[HY093]: Invalid parameter number: parameter was not defined

The code is as follows $sql = "select * from user where age>:age LIMIT :num";$map = ['age'=>16...

From [PHPdiscussion group] 2020-02-15 23:47:07 0  1  3024

php - 长期做二次开发，是不是会导致技术不增反降？

长期做二次开发，是不是会导致技术不增反降？

From [PHPdiscussion group] 2017-04-10 15:33:16 0  12  3022