Re: PHP_SELF syntax

From: Date: Mon, 24 Feb 2003 21:44:41 +0000
Subject: Re: PHP_SELF syntax
References: 1 2 3  Groups: php.general 
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At 01:42 24.02.2003, Jason Lange spoke out and said: --------------------[snip]-------------------- >What you might try is removing the single-quotes from around PHP_SELF. > >Before: $_SERVER['PHP_SELF'] >After: $_SERVER[PHP_SELF] This is only valid if the array is contained within a double quoted string - it will generate a parser warning outside a string (undefind constant PHP_SELF). >Another note: as far as I can tell you do not need the braces ({}) to >enclose a variable within a double-quoted string. I may be wrong, but >nothing I've read advocates doing this, and I've never had a problem >with my code when I've written it this way. The docs on strings (http://www.php.net/manual/en/language.types.string.php) clearly states this: "If a dollar sign ($) is encountered, the parser will greedily take as much tokens as possible to form a valid variable name. Enclose the variable name in curly braces if you want to explicitly specify the end of the name." $fruits = array('strawberry' => 'red', 'banana' => 'yellow'); // Works but note that this works differently outside string-quotes echo "A banana is $fruits[banana]."; // Works echo "A banana is {$fruits['banana']}."; // Works but PHP looks for a constant named banana first // as described below. echo "A banana is {$fruits[banana]}."; // Won't work, use braces. This results in a parse error. echo "A banana is $fruits['banana']."; // Works echo "A banana is " . $fruits['banana'] . "."; -- >O Ernest E. Vogelsinger (\) ICQ #13394035 ^ http://www.vogelsinger.at/

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