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PHP require_once
PHP require_once for beginners and professionals with examples, php file, php session, php date, php array, php form, functions, time, xml, ajax, php mysql, regex, string, oop, chop(), bin2hex(), addslashes(), addcslashes() etc.
require_onceIt is same as require, but only one time it includes the external file. Example 1
Save as page1.php 
Save as page2.php 
Output: 
Next Topicinclude_once
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