PHP Operators

2023-03-16 22:39| 来源: 网络整理| 查看: 265

PHP Operators ❮ Previous Next ❯ PHP Operators

Operators are used to perform operations on variables and values.

PHP divides the operators in the following groups:

Arithmetic operators Assignment operators Comparison operators Increment/Decrement operators Logical operators String operators Array operators Conditional assignment operators PHP Arithmetic Operators

The PHP arithmetic operators are used with numeric values to perform common arithmetical operations, such as addition, subtraction, multiplication etc.

Operator Name Example Result Show it + Addition $x + $y Sum of $x and $y Try it » - Subtraction $x - $y Difference of $x and $y Try it » * Multiplication $x * $y Product of $x and $y Try it » / Division $x / $y Quotient of $x and $y Try it » % Modulus $x % $y Remainder of $x divided by $y Try it » ** Exponentiation $x ** $y Result of raising $x to the $y'th power Try it » PHP Assignment Operators

The PHP assignment operators are used with numeric values to write a value to a variable.

The basic assignment operator in PHP is "=". It means that the left operand gets set to the value of the assignment expression on the right.

Assignment Same as... Description Show it x = y x = y The left operand gets set to the value of the expression on the right Try it » x += y x = x + y Addition Try it » x -= y x = x - y Subtraction Try it » x *= y x = x * y Multiplication Try it » x /= y x = x / y Division Try it » x %= y x = x % y Modulus Try it » PHP Comparison Operators

The PHP comparison operators are used to compare two values (number or string):

Operator Name Example Result Show it == Equal $x == $y Returns true if $x is equal to $y Try it » === Identical $x === $y Returns true if $x is equal to $y, and they are of the same type Try it » != Not equal $x != $y Returns true if $x is not equal to $y Try it » Not equal $x $y Returns true if $x is not equal to $y Try it » !== Not identical $x !== $y Returns true if $x is not equal to $y, or they are not of the same type Try it » > Greater than $x > $y Returns true if $x is greater than $y Try it » = Greater than or equal to $x >= $y Returns true if $x is greater than or equal to $y Try it »

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