PHP Operators

arithmetic

-$a

Negative Number Conversion

Reverse the sign of a number a number.

Tags
Related
$a - $b+$a 
$a = '1';
$a = -$a; // -1

$b = '1.2';
$b = -$b; // -1.2

$c = -4;
$c = -$c; // 4

bitwise

null coalescing

comparison

logical

strings

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PHP Operators is a reference guide for operators old and new in the PHP programming language. We're SPATIE, a web development agency from Belgium. Besides client work we like to contribute to the open source community and make fun projects like this one.