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PHP opening tags

PHP reference for php opening tags.

Syntax

<?php
echo "Hello";

Examples

PHP opening tags example

A focused example you can adapt while practising.

<?php
echo "Hello";

Best practices

  • Start with the smallest working example, then adapt it to your project.
  • Use the language’s standard library and idioms before introducing extra dependencies.

At a glance

Purpose
Server-side web applications
File extension
.php
Runs in
PHP runtime on a server or CLI
Usually used with
HTML, databases and web servers

Specifications & further reading

Related PHP documentation

PHP Variables & Strings
PHP variables start with $. Double-quoted strings interpolate variables, while single-quoted strings generally treat their contents literally.PHP comments
PHP reference for php comments.PHP variables
PHP reference for php variables.PHP constants
PHP reference for php constants.