what is in php

Detailed usage of try {} catch {} in PHP. In try {...} catch (Exception $ e ){...} try {} catch {} in PHP is exception handling. put the code to be executed into the TRY block. if an exception occurs in a statement during the code execution Try{//..

When the tostring () magic method treats an object as a string, it automatically calls this method and returns a certain string in this method, to indicate the result after the object is converted to a string. This magic method is commonly used.

When explaining PHP constants, we know that most of the constants in PHP are unchanged, but there are eight predefined constants that will change with the location of their code, these eight constants are called magic constants. these special

Difference between exit () and die () in PHP This article briefly analyzes the differences between exit and die commonly used in php. If you need them, you can take a look. First, consider the following question: What will the following code display

A few days ago, I saw someone asking for the use of double colons: in PHP in Baidu. At that time, the answer I gave him was concise because mobile phone typing was not very convenient! Today I suddenly remembered it, so here I will summarize the

The most frequently used data types in PHP are non-strings and arrays. PHP is easier to use and also benefits from the flexible array types. It is necessary to introduce the hash table (HashTabl The most frequently used data types in PHP are

1. If there is a semicolon (not enabled) or display_errorsOff in front of display_errors in php. ini, is it meaningless to set the php error display using the display_errors () function in the php program? 2. If error_reporting... 1 in php. ini, if

How to use output_buffering in PHP ?. How to use output_buffering in PHP? This article mainly introduces output_buffering in PHP. This article describes some advanced usage of outputbuffering. if you need more information, see how to use

The difference between strlen and mb_strlen in PHP string truncation functions is strlenmb_strlen. The difference between strlen and mb_strlen in the PHP string truncation function and strlenmb_strlenPHP in the strlen and mb_strlen functions. the

The usage of the Ctype function in php is described in detail. The usage of the Ctype function in php is described in detail. this document analyzes the usage of the Ctype function in php. Share it with you for your reference. The specific analysis

Analysis of curlsetopt function usage instance in PHP, curlsetopt. In PHP, the usage of the curl_setopt function is analyzed as an example. This document describes the usage of the curl_setopt function in PHP. Share it with you for your reference.

Some function summaries of image rendering in PHP, and php image rendering function. Some function summaries for drawing images in PHP. php functions for drawing images in PHP are rich in functions, including point, line, and various geometric

Example of simplexml_load_file function usage in php, simplexml. Simplexml_load_file function usage example in php. simplexml in this article describes the use of simplexml_load_file function in php. Share it with you for your reference. The usage

Detailed description of buffer usage for mysql operations in php. Mysql buffer operations in php this article mainly introduces the usage of mysql buffer operations in php, and analyzes in detail the mysql buffer operation skills in the form of

The most frequently used data types in PHP are non-strings and arrays, and PHP is easier to get started with because of the very flexible array types. It is necessary to introduce a hash table (HashTable) before you begin to describe these data

This article describes object-oriented programming (OOP) in PHP. I'll show you how to use object-oriented concepts to compile less code but better programs. Good luck to all of you.The concept of object-oriented programming has a different view for

In php, set the session to use memcache for storage. sessionmemcache. Summary of how to set the session to use memcache for storage in php, sessionmemcachememcached provides a custom session processor that can be used to store user session data to

In PHP, the hash function of Array is implemented. today we have reviewed and learned how to implement variables in PHP. by browsing its source code, we found that all data types in PHP are stored through a union. Php is a weak type language. in its

The P>java language is powerful, so it can be useful to invoke Java functionality in PHP in many cases. There are two ways to invoke the Java language in PHP, one is to use the Java extension in PHP, and the other is to use the SJOP protocol

Question about require in PHP 1. how does one use require in PHP to contain all files in a folder? Require ("./folder/*") is not feasible. isn't it as flexible and convenient as include in Java in PHP? Cannot I recognize the name in regular