Category：PHP
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Time：2020-7-13
In the development of PHP, the use of time function can be said to be everywhere, and there are many ways to operate time in PHP, such as PHP timestamp, conversion between date and timestamp, obtaining the current date, time before or after the current time, and so on. Let’s talk about the use of […]
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Time：2020-7-13
The content of this article is about the most complete and detailed PHP interview questions (with answers), which has a certain reference value. Now I would like to share it with you. If you need help, you can refer to it Related recommendations: Share a wave of Tencent PHP interview questions The latest PHP interview […]
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Time：2020-7-11
preface At one time, I thought the fastest step was T-Mac’s first step. Later, I thought that 7-sauce was faster to escape. Now I understand that we are all racing against time. At the end of the year, give yourself an explanation Me in 2019 Many articles have been written in 2019, He was praised […]
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Time：2020-7-11
In order to implement a cross time zone application in PHP, that is, users who log in from different time zones need to see their own time zones and switch time zones. The idea here is that all the time stored in the system is GMT (UTC) time. When a user logs in, it will […]
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Time：2020-7-10
PHP program development often involves the generation of thumbnails, which is not difficult by itself. But do you know that PHP can optimize and adjust the quality of generated thumbnails? In other words, PHP can control the clarity of generated thumbnails and the volume of generated thumbnails. Let’s take a look at how to use […]
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Time：2020-7-10
The biggest feature added in redis 3.2 is the support for Geo (geographic location) In the current business, the map aspect is to call Gaode API (cloud image), and the request will be delayed. However, redsigeo can find the nearby terminal and measure the linear distance between two points (with error) 1. Geoadd: add the […]
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Time：2020-7-9
In PHP, both $globals and global can implement the function of global variables, so many people think that global and $globals [] are just differences in writing, but they are not. $global is a super global variable, which is actually an array, and global is a keyword for declaring global variables! 1、 Super global variable […]
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Time：2020-7-9
Environment: nginx + MySQL + php7.2; php7.2 installed on Mac with homebrew Problem: the PHP configuration file has been modified, php.ini ; server is nginx, how to restart PHP? Open: brew services start [email protected] Restart: brew services restart [email protected] stop it: brew services stop [email protected]
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Time：2020-7-8
wp_tag_cloud() The function is used to label cloud. It can define the font size, label sorting and other attributes according to the number of articles associated with each tag. Since version 2.8, the taxonomy parameter has been added, which means that in addition to tags, categories or other custom taxonomies can be displayed as “clouds”. […]
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Time：2020-7-8
The official website prompts that support for the / E modifier has been removed. Please use preg instead_ replace_ callback()The reason is that the / E modifier causes preg_ Replace () takes the replacement parameter as PHP code (after the appropriate reverse reference is replaced), which will be used by a one sentence backdoor […]
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Time：2020-7-7
This article describes the definition and usage of PHP observer pattern. For your reference, the details are as follows: The observer pattern I understand is that when we trigger an event, we want to tell the object that I want to tell this operation, and let them all perform the operation, that is to bind […]
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Time：2020-7-7
Composer is a very popular PHP package dependency management tool, which has replaced pear package manager For users, composer is very simple. Through a simple command to download the required code package to the vendor directory, then developers can import the package and use it The key is what your project defines composer.json , you […]
