undefined index 'username' in /var/www/html/test/foo.php on line 2
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Reference - What does this error mean in PHP?
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Getting basic-auth username in php
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What is the difference between HTTP_HOST and SERVER_NAME in PHP?
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Why are $_POST variables getting escaped in PHP?
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MySQL command appends '@localhost' to username
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Changing "index.php" Within The Address
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Why is settings.php in the web folder?
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Where are $_SESSION variables stored?
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Drupal unexpected "Fatal error: Class name must be a valid object or a string [...] common.inc" on every page
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PHP/MYSQL login error?
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if(!isset($_POST["user"]) ignored and returns Undefined Index
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Whats the simplest way to edit and add files to "/var/www"?
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Curly brackets in URLs
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500 Error on index.php file
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How do I get PHP errors to display?
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'At' symbol before variable name in PHP: @$_POST