PHP dynamic calling method example code_PHP tutorial

The example code of PHP dynamic calling method is as follows:
require_once showErrMsg.php;
$_action = (isset($_REQUEST[action])?$_REQUEST[action]:"");
if($_action!=null&&$_action!=){
if(function_exists($_action)){
eval("$_action();");
}else{
die(showErrMsg ( "
The method [".$_action."()] does not exist in the current php file."));
}
}
?>

function showErrMsg($strMsg){
Return "".$strMsg."";
}
?>

http://www.bkjia.com/PHPjc/486103.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/486103.htmlTechArticlePHP dynamic calling method example code is as follows: ?php require_once showErrMsg.php; $_action = (isset($_REQUEST[ action])?$_REQUEST[action]:""); if($_action!=null$_action!=){ if(function_e...