How to make a PHP verification...

PHP creates a verification code, mainly using array related functions

PHP Tencent and Baidu coordina...

public function coordinate_switch($a,$b){//Baidu to Tencent coordinate conversion $x = (double)$b - ...

How to generate verification c...

Summary: This blog introduces the specific steps of using gregwar/captcha to implement verification ...

How to build a LAMP environmen...

1. Installation of apache, php, and mysql. Installation order: apache/mysql. Install php last. The o...

How to configure the PHP devel...

Some little knowledge about th...

When using thinkphp to build the backend, there are many parameters that need to be configured. Some...

php implements queue

Queue: Meets the first-in-first-out (FIFO) rule; The following uses PHP to implement a simple circul...