Functions can be passed as arguments to other functions (a feature called Higher-order Functions) and functions can return other functions. since i'm planning to build my docs from command-line, i installed php-5.0.4-Win32 seperately (unzip, change .ini file, done!) PHP variables - w3resource Here the output is the same for the variables containing objects. If this was a documentation problem, the fix will appear on pear.php.net by the end of next Sunday (CET). PHP only variables should be passed by reference @ blog :: 隨意窩Xuite日誌 . This means you must pass it a real variable and not a function returning an array because only actual variables may be passed by reference. Returning by reference is useful when you want to use a function to find to which variable a reference should be bound. From the PHP Manual for end function, we can read this: The array. $GLOBALS is a special variable in PHP that references all variables in the global scope.$GLOBALS is an associative array . When variables in PHP is passed by value, the scope of the variable defined at function level bound within the scope of function. only variables should be passed by reference laravel. For more information, see Run your app in Azure App Service . This array is passed by reference because it is modified by the function. This renders the above notice. Pass by reference (C++ only) - IBM Pass By Reference - Florida State University As such we can not know whether unpacking the Traversable will or will not hit a by-reference argument. Difference between Call by Value and Call by Reference This array is passed by reference because it is modified by the function. You can pass an argument by reference by adding an ampersand to the variable name in either the function call or the function . This means you must pass it a real variable and not a function returning an array because only actual variables may be passed by reference. return type hints (return Type declarations) From PHP 7 onwards, you can specify type hints for returned variable/object, just as it is possible to declare type for arguments.
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