Difference between require, include, require_once and include_once?

Difference between require, include, require_once and include_once?

php include require require-once

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Why is require_once so bad to use?

php performance require-once

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relative path in require_once doesn't work

php warnings fatal-error require-once

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Using require_once for up directory not working

php directory require-once

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Is it better to use require_once('filename.php') or require_once 'filename.php';

php require-once

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How does include path resolution work in require_once?

php include include-path require-once

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Why is require_once echoing entire file contents? [closed]

php require-once

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Why I cannot get the return value of require_once function in PHP?

php return require-once

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PHP require_once error when including file in parent folder

php require-once

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What is the scope of require_once in PHP?

php scope server-side-includes require-once

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Is there a way to set the scope of require_once() explicitly to global?

php scope global-variables require-once

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require_once to global scope within a function

php scope require-once

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Use Require_once() to include database connection variables correctly

php scope require-once

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Fatal error: require_once(): Failed opening required

php .htaccess xampp localhost require-once

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what's wrong with my require_once path?

php jquery facebook require-once

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