Is there any explanation why this " %_ " and "Square Bracket" is used ? i cant proceed without knowing this, Thanks in advance .
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`$_POST` is an associative array. As per language design, you access the elements of such an array with the square bracket syntax: `$_POST["key"]`. – domsson Apr 16 '17 at 22:36
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1RTM http://php.net/manual/en/language.variables.superglobals.php – Funk Forty Niner Apr 16 '17 at 22:37
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*"Is there any explanation why this " %_ ""* - %_ is perl http://stackoverflow.com/questions/32846792/what-is-in-perl – Funk Forty Niner Apr 16 '17 at 22:38
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$_ variables
Built-in variables that begin with $_ are so-called superglobals:
Superglobals are built-in variables that are always available in all scopes
[] syntax
$_POST is an associative array. As per the language design, accessing elements of such an array is performed via the square bracket notation:
echo $_POST["key"];
domsson
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OP: *"Is there any explanation why this " %_ ""* - and not `$_` unless that was a typo on their part; to which the duplicates cover all these. – Funk Forty Niner Apr 16 '17 at 22:41
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@Fred-ii- I'd assume it was a typo, seeing how the title refers to `$_POST`. But yeah, question is a duplicate anyway, what am I even doing here. :) – domsson Apr 16 '17 at 22:42
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My explanation is: $_ and Square Bracket are part of the syntax. Every language has syntax = rule of writing. Authors of a programming language are authors of the syntax.
b2ok
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