php boolean operators

What is a string operator? String operator introduction: a string operator is used to concatenate two strings to form a new string. We have introduced the arithmetic operators in PHP operators in the previous sections. I believe you have some

The Boolean type can be the simplest of the three packaging objects: Number, String, and Boolean. Number and String objects have a large Number of instance attributes and methods, but few Boolean objects. In a sense, designing a program for a

I. PHP has a rich set of operators, most of which are directly from the C language. Operators can be divided into arithmetic operators, string operators, value assignment operators, bitwise operators, conditional operators, and logical operators.

Common operators and operation symbols in php are described in detail .? Php Tutorial * operator number (PHP) operator symbol ** by operator number function is divided into: * 1. arithmetic operator +-* % + -- * 2. string operator. concatenation

Classification of operators: The PHP operator can be divided into unary operators, two-ary operators, and ternary operators based on the number of operands. Unary operators such as ! (take the inverse operator) or ++ (plus an operator), most of the

PHP Boolean data type falsetrue usage introduction. In php, falsetrue is true or false. in php, falsetrue is called a Boolean data type. it is a common data type. for example, conditional judgment is also a Boolean data type, in php, false true

yesterday we learned about constants and data types related knowledge, because the previous knowledge is to be relatively simple, so some small details to learn to pay attention to, always remind yourself to be careful. Today the main learning is

& Lt ;? Php * operator number (PHP) operator symbol ** is divided: * 1. arithmetic operators +-* % +-* 2. string operators connected to operators * 3. value assignment operators +-* % /* Operator number (PHP) operator symbol * * By

/* Operator number (PHP) operator symbol** By operator number:* 1. Arithmetic Operators +-*/% + + --* 2. String operators. Concatenation Operators* 3. Value assignment operator = + =-= * =/= % =. =* 4. Comparison operators >======! = <>! =*

/* Operator number (PHP) operator symbol ** By operator number:* 1. Arithmetic operators +-*/% + + --* 2. String operators. Concatenation Operators* 3. Value assignment operator = + =-= * =/= % =. =* 4. Comparison operators >======! = <>! =*