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PHP Cheat Sheet
Print-ready cheat sheet for PHP, organized for fast lookup, study, and desk-side use
Sample
What's in this cheat sheet
Hello World
<?php
echo "Hello, World!\n";
// PHP code must be inside <?php ... ?> tags
Run PHP
php script.php # run a file
php -r 'echo "hi\n";' # run inline code
php -S localhost:8000 # built-in dev server
Comments
// single-line comment
# also single-line
/* multi-line
comment */
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