← CodePrimer
PHP
Beginner
Basics
Combined assignment operators
What does += mean in PHP?
+= -= .= shortcuts.
<?php
$total = 10;
$total += 5; // 15
$label = 'Web';
$label .= ' App'; // Web AppNotes
.= concatenates strings in place.
Keywords: += · -= · .= · assignment
Related
HTML
HTML headings h1–h6
How do I create page headings?
CSS
Three ways to apply CSS
What are inline, internal, and external CSS?
PHP
Embed PHP inside HTML
How do I mix PHP and HTML?
HTML
Paragraphs and line breaks
How do I break text into paragraphs?
CSS
CSS box model
Why is my element wider than expected?
PHP
PHP comments
How do I write comments in PHP?