HTTP

small function that validate arguments passed by GET/POST or others

Type:	application
Added by:	yszhang
Entered:	12/11/2002
Last modified:	01/11/2001
Rating:	- (fewer than 3 votes)
Views:	4696

a small function that can validate arguments passed by GET/POST. can be use on any arguments validation case.

<?
 #---------

                            # validate argument using func_get_args and func_num_args functions

                            # yinshu 11/11/2002

                            #---------

                            
 function validate () {

                                    $args=func_get_args();

                                    for ($i=0;$i<func_num_args();$i++) {

                                            if (strlen($args[$i])==0) {

                                                    // if ($foo) will be false if $foo=0;

                                                    // strlen will false when null


                                                    echo "<b>  Not enough arguments!</b>";

                                                    // hide this echo if you don't want extra error message

                                                    return FALSE;

                                            }

                                    }

                                    return TRUE;    // all argument exist
 }

                            
 #---------

                            # usage example, don't copy/paste below

                            #---------

                            
 $one=1;

                            $two=2;
 $zero=0;

                            

                            if (validate($one,$two,$zero))

                                    echo "<p>all arguments exist";

                            else

                                    echo "<p>missing some, or whatever..";

                            
 # if any of those arguments is null, validate will return false

                            
 if (validate($one,$two,$zero,$three))

                                    echo "<p>all arguments exist";

                            else

                                    echo "<p>missing some, or whatever..";
 ?>

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