PHP notice:undefined Index:sku in Related problem solutions

notice:undefined Index:sku in problem resolution in PHP

This is not a bug, but warning, when using $_get[] or $_post[] without isset and other judgments, it will prompt this error.

Jones suggested a solution that perfectly solves this problem:

/* Replace $_get[] Get value */function _get ($str) {$val =!empty ($_get[$str])? $_get[$str]: Null;return $val;} /* Replace $_post[] Get value */function _post ($str) {$val =!empty ($_post[$str])? $_post[$str]: Null;return $val;}

When used, use the following:

/** sets the current page */$page = _get (' page '), $inventory->setcurrentpage ($page),/** calculates the total number of pages */$sku = _post (' sku '); $warehouse = _ Post (' Warehouse '); $supplier = _post (' supplier ');

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