php skills

This article mainly introduces the implementation of PHP's query of nearby persons and their distance, and involves php mathematical computation related skills, which has some reference value, for more information, see the example in this article.

This article describes how to filter html strings in php and prevent SQL injection. For more information, see Batch filter post and get sensitive data The code is as follows: $ _ GET = stripslashes_array ($ _ GET );$ _ POST = stripslashes_array ($ _

This article provides a detailed analysis of the implementation code that saves user login information by using session and cookie in php at the same time, for more information, see session and cookie to save user logon information. 1. database

There is a function in PHP: Stringstr_repeat ($ str, num); very useful. This article introduces the implementation of the function in js next time, if you are interested, you can refer to the following function in PHP: String str_repeat ($ str, num);

This article mainly introduces 10 small-known but very useful functions in PHP. For more information, see the rich built-in functions in PHP. many of them have been used, but there are still many functions that most of us are not familiar with, but

This article mainly introduces the PHPfopen () and file_get_contents () applications and differences. For more information, see The code is as follows: $ File = fopen ("11.txt"," r ") or exit (" Unable to open file! "); // Open the file using

Sometimes, to hide the truth, we define the file as a header and then download the readfile, but this will increase the burden on the server. generally, we do not recommend downloading large files. The code is as follows: Function sendFile ($

This article mainly introduces the differences between the PHP extension modules Pecl, Pear, and Perl. For more information, see I. brief summary:Pear: a relatively standard for writing, a popular toolbox code set in foreign countries Pecl: php

This article mainly describes how to find the php configuration file php. there are two methods for ini path. many users cannot find php after installing php. ini, or an environment installed by others. The method in this article is simple and

PHP program errors include syntax errors, runtime errors, and logic errors. If the PHP script does not report a syntax error, why: 1. in a general integrated environment, error reports are enabled by default. However, in a linux system,

This article describes PHP-safe URL string base64 encoding and decoding, and replaces insecure characters with base64, if you want to use base64_encode and base64_decode, the generated string may not be applicable to URL addresses. The following

This article mainly introduces how PHP uses CURL to simulate logon to websites with verification codes, which can help readers better understand and apply CURL operations, you can refer to a lot of simulated login programs on the internet. most of

This article mainly introduces the example of foreach forward and reverse output in php. it is an example of phpforeach usage. if you need it, refer to the following implementation code: // Foreach ($ files as $ file_num => $ file) {if (is_file

This article mainly introduces the MVC programming idea in PHP programming, which is helpful for a deep understanding of MVC programming ideas, if you need it, you can refer to the MVC programming idea of PHP, which has been widely used in the

Loading css and js fails when html pages are integrated into the ci framework. The reason is that when the ci framework is the portal framework that integrates html pages into the ci framework, loading css and js fails. after half a day, I found

This article mainly introduces two examples of PHP image compression, which are of great practical value and worth learning. if you need it, you can refer to this article to introduce two methods of PHP image compression, readers can make

This article mainly introduces PHP + Ajax to check whether an instance exists during user name or email registration. it is a very common and important function. it is often used in forum registration or member registration, if you need it, you can

This article mainly introduces several considerations for using static methods in PHP, and describes the PHP static method calling techniques and error points in the form of examples, for more information about PHP static methods, see the following

This article mainly introduces the php Chinese string truncation method example, analyzes and compares common string truncation functions, and provides a complete example to solve the PHP Chinese string truncation problem, for more information about

This article mainly introduces php + ajax implementation of the method of refreshing new pages. it describes in detail the creation of databases, the implementation of Ajax files, and the PHP call method, for more information about php + ajax, see