null coalescing

$a .= $b

Concatenation assignment

Concatenate two string and reassign the variable to the new value.

Tags
Related
$a = "Two becomes "
$b = "one";
$a .= $b; // "Two becomes one"

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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.