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PHP tutorial

What is Zval in PHP

2022-05-20
What are the characteristics of hash table in PHP?

2022-05-20
What is the core architecture of PHP

PHP core architecture: 1. Zend is part of the PHP core. 2. Extensions provide various basic services in a component-based manner. 3. Sapi is the server application programming interface. 4. Application is the PHP program we usually write.

2022-05-19
How to use strval() function in PHP

Usage of strval() function in PHP: 1. It is a built-in function in PHP that is used to convert any standard value (string, integer or double) to a string. 2. strval cannot be used in arrays or objects. If used, this function simply returns the type name o

2022-05-19
How to intercept php string

PHP string interception methods: 1. Chinese interception: mb_substr(). 2. English interception: use the substr() function. If the intercepted string is multiple bytes, garbled characters will appear. 3. $str[0], treats strings as character sets, not appli

2022-05-18
What are PHP internal functions

Introduction to PHP internal functions: 1. Functions declared inside the function are internal functions. 2. Please note that after calling the external function, you can call the internal function at will. Internal functions can be called within a functi

2022-05-18
What are the ways to block errors in PHP?

2022-05-17
php rtrim() function deletes characters

2022-05-17
How to implement n factorial in php

2022-05-17
Sorting out php regular replacement functions

2022-05-17
Solution to the problem that php cannot generate images

2022-05-17
On-demand loading of Composer in php

2022-05-16
Which PHP files contain vulnerabilities?

PHP file inclusion vulnerabilities: 1. LFI, local file inclusion vulnerability, as the name suggests, refers to a vulnerability that can open and include local files. 2. RFI, remote file inclusion vulnerability. Refers to the ability to include files on a

2022-05-13
Advantages and disadvantages of php FastCGI mode

Advantages and disadvantages of php FastCGI mode: 1. Advantages: independent process pool to run, support distributed computing, and separation of dynamic logic. 2. Disadvantages: There is only one available php.ini file for all subdirectories, and enviro

2022-05-13
How to understand php FastCGI mode

Understanding of php FastCGI mode: 1. It is a protocol that allows interactive programs to communicate with Web servers. FastCGI is an enhanced version of the earlier Common Gateway Interface. 2. Committed to reducing the cost of interaction between the w

2022-05-13

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