PHP performance optimization tips sharing

This article mainly shares with you PHP performance optimization tips, hoping to help you write better PHP code.

(1)foreach is more efficient, try to use foreach instead of while and for loops;

(2)Do not declare variables inside the loop, especially variables such as objects;

(3) In multiple nested loops, if possible, the longest loop should be placed in the inner layer and the shortest loop in the outer layer, thereby reducing the number of times the CPU crosses loop layers and optimizing program performance;

(4) Use single quotes instead of double quotes to quote strings to optimize PHP performance;

(5) Use i+=1 instead of i=i+1. In line with the habits of c/c++, the efficiency is still high;

(6) Optimize the Select SQL statement and perform as few Insert and Update operations as possible when possible to achieve the purpose of PHP performance optimization;

(7) Perform as few file operations as possible, although PHP's file operation efficiency is not low;

(8) Use PHP internal functions as much as possible;

(9) When you can use PHP's internal string manipulation functions, do not use regular expressions;

(10) feof, fgets, fopen, and when file_get_contents can be used instead of file or series methods, try to use file_get_contents. Because it's much more efficient. But please pay attention to the PHP version problem of file_get_contents when opening a URL file.

Related recommendations:

php performance optimization: isset() is faster than strlen()

Detailed examples of php performance optimization

Detailed explanation on PHP performance optimization

The above is the detailed content of PHP performance optimization tips sharing. For more information, please follow other related articles on the PHP Chinese website!