note 130649 added to language.types.resource

The resource is not a type you can create; it is a PHP internal type that PHP uses to refer to some variables. For example, You have a number 5.5, which is a Float, and you can convert it to an int type, but you cannot convert it to a resource. A resource type is used for external resources, like files or database connections, as shown below: <?php // a normal variable $file_resource = fopen("normal_file.txt", "r"); // after we assigned an external file to that variable using the function fopen, // PHP starts dealing with the file, and since it is an external resource, // PHP makes the type of the variable a resource that refers to that operation var_dump($file_resource); // the previous var_dump returned bool(false), // because there was no file that PHP could open. // and it gave me this warning: // PHP Warning: fopen(normal_file.txt): Failed to open stream: No such file or directory // now I am trying to open an existing file $file_resource = fopen("existed_file.txt", "r"); // then check the type: var_dump($file_resource); // it gives this: // resource(5) of type (stream) // now the variable's type is resource ?> ---- Server IP: 206.189.2.9 Probable Submitter: 2001:16a2:f1f1:5600:80e2:9342:a3ed:215a ---- Manual Page -- https://php.net/manual/en/language.types.resource.php Edit -- https://main.php.net/note/edit/130649 Del: integrated -- https://main.php.net/note/delete/130649/integrated Del: useless -- https://main.php.net/note/delete/130649/useless Del: bad code -- https://main.php.net/note/delete/130649/bad+code Del: spam -- https://main.php.net/note/delete/130649/spam Del: non-english -- https://main.php.net/note/delete/130649/non-english Del: in docs -- https://main.php.net/note/delete/130649/in+docs Del: other reasons-- https://main.php.net/note/delete/130649 Reject -- https://main.php.net/note/reject/130649 Search -- https://main.php.net/manage/user-notes.php