if condition in php

How to reuse the code of the if condition in php I have an if condition (which is composed of multiple expressions), which is used on many pages, but this condition changes at any time, for example, if & nbsp; (condition) & nbsp; {statement}, how

How to convert a php string to an if condition statement, for example, $ condition = "2 = 2 & 3 = 5 "; If ($ condition ){ Echo 1; } How can we convert $ condition into conditions that can be recognized by if? This can be regarded as a string

For example: $condition = "2 = = 2 && 3 = = 5"; if ($condition) { Echo 1; } How do I convert a $condition to an if-recognizable condition? This judgment is treated as a string constant with a value of true Reply to discussion (solution) if

Any php Tutorial script consists of a series of statements. A statement can be a value assignment statement, a function call, a loop, or even a (null statement) condition statement that does nothing. The statement usually ends with a semicolon. In

Comparison of several methods of writing the if condition in PHP: win7 hardware: PCs xdebuger: 2.2.3 test content: executions, no time compared to code execution? Php *** hardware: scum computer * xdebuger version: 2.2.3 *** conclusion: * 1. method 2

How to reuse php if condition code PHP code reuse I have an if condition (composed of multiple expressions), which is used on many pages, but this condition changes at any time, for example: If (condition) {Statement} How can I reuse code with

This article mainly introduces how to use if Shell script to program if statements. for details, refer to the if statement format. If condition Then Command Else Command Fi, don't forget the end. If statements forget the final fi Test. sh: line 14:

"Note 1": unlike Java, PHP and other languages, SH's process control can not be empty, such as: The code is as follows: You can't write this in Sh/bash, if the Else branch has no statement execution, don't write this else, like this: If

If, elseif, and else statements are used to execute different actions based on different conditions.Condition StatementWhen writing code, you often need to perform different actions for different judgments.You can use conditional statements in the

Php query and multi-condition query, php Condition Single-condition query: 1. First, you must have a table to display the data in the table: untitled document NO. name phone number group query ($ SQL); // pass the value while ($