PHP logical operator Instance Usage Summary

An operator is a symbol that tells the compiler to perform a particular arithmetic or logical operation, and usually forms an expression along with the operand, which we often see as participating in mathematical operations or logical operations. PHP also contains a lot of operators, this article in detail to understand the important comparison operators. The type of comparison operators, as their names imply, allow two values to be compared. The comparison operators are as follows: 1) $a > $b greater than: if the $a is strictly greater than $b, return TRUE2) $a < $b less than: If the $a is strictly less than $b, then return TRUE3) $a >= $b greater than or equal to: if $a is greater than or equal to $b, then return t RUE4) $a <= $b less than equals: if $a is less than or equal to $b, return TRUE5) $a <> $b not equal to: if $a is not equal to $b, then return TRUE6) $a! = $b &n

1. Parsing PHP comparison and logical operators

Summary: An operator is a symbol that tells the compiler to perform a particular arithmetic or logical operation, usually along with an operand, and we often see it participate in mathematical or logical operations. PHP also includes a lot of operators, this article in detail ...

2. Logical operator _php Tutorial

Summary: Logical operators. Table 7-3. Logical Operators (table 7-3 logical operator) example name result?/font> $a and $b and true of both $a and $b is true. /FONT> $a or $b or?/font> True if either $a or $b

3. The similarities and differences between & and && in PHP logic operators

Summary: PHP logic operator & and && similarities and differences PHP has 5 arithmetic operators (+-*/%), 6 assignment operators (+ = = *=/=%=. =), 8 comparison operators (= = < > <= >=! = < >!==), 6 Types of logic operators (such as &&, | |, &,

4. Logical operators

Summary: Logical operators. Table 7-3. Logical Operators (table 7-3 logical operator) example name result?/font> $a and $b and true of both $a and $b is true. /FONT> $a or $b or?/font> True if either $a or $b

6. Logic operator _php

Introduction: Table 7-3. Logical Operators (table 7-3 logical operator) example name result?/font> $a and $b and true of both $a and $b is true. /FONT> $a or $b or?/font> True if either $a

6. Lua expressions and Control structure learning notes _node.js

Introduction: This article mainly introduces LUA expressions and control structure Learning notes, this article explains the arithmetic operators, relational operators, logical operators, local variables and scope, control structure and so on, the need for friends can refer to the following