What are the assignment operator codes in php?

The assignment operator in PHP assigns values ​​to variables, including ordinary assignment (=), addition assignment (=), subtraction assignment (-=), multiplication assignment (*=), and division assignment (/= ) wait. Union assignment (PHP 7.3 and later) allows multiple values ​​to be assigned to multiple variables at the same time.

Assignment Operator in PHP

What is the assignment operator?

The assignment operator is used to assign a value to a variable.

What assignment operators are there in PHP?

• =: Ordinary assignment
• =: Additive assignment
• -=: Subtraction assignment
• *=: Multiplication assignment
• /=: Division assignment
• %= : Remainder assignment
• &=: Bitwise AND assignment
• |=: Bitwise OR assignment
• ^=: Bitwise XOR assignment
• **=`: Union assignment (PHP 7.3 and later)

Usage of assignment operator

<code class="php">$x = 5; // 普通赋值
$x += 3; // 加法赋值（将 $x 的值加 3）
$x -= 1; // 减法赋值（将 $x 的值减 1）
$x *= 2; // 乘法赋值（将 $x 的值乘 2）</code>

Union assignment (PHP 7.3 and later)

Union assignment allows multiple values ​​to be assigned at the same time Give multiple variables.

<code class="php">list($a, $b, $c) = [1, 2, 3]; // 同时将 1、2、3 分别赋值给变量 $a、$b、$c</code>

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