Re: Iterating varibales

From: Date: Fri, 06 Jul 2001 00:56:51 +0000
Subject: Re: Iterating varibales
Groups: php.general 
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Actually, if you make the names in the form resemble array variables, this can be greatly simplified. Something similar to the following might be what you are looking for: <input type="text" name="item[0]"> <input type="text" name="item[1]"> when the form is passed to the next script, there will be a single variable called $item - and it will be an array with two values. This is one of the neater features of PHP... I would recommend generating the input fields using something like the following: for ($loop=0; $loop < $num_needed; $loop++) { echo "<input type=\"text\" name=\"item[$loop]\"><br>"; } in the result script you can then traverse the passed array $item with a foreach loop (if you are using PHP4). Something like the following could possibly work. foreach($item as $key=>$value) { echo "Index #$key = $value<br>"; } At Thursday, 5 July 2001, you wrote: >I have a site which uses two pages. The first page generates an HTML >form with multiple rows which is then POSTed to the second page. Sometimes >on the first page I have to create multiple rows of INPUT fields. To allow >a dynamic number of INPUT fields (say someone wants to add seven new numbers >to there online address book), set up a while look and echo "<INPUT >TYPE=text NAME=input_field".$inc.">"; where $inc is the incremented variable >in a loop. The result is something like this: > ><INPUT TYPE=text NAME=input_field0> ><INPUT TYPE=text NAME=input_field1> ><INPUT TYPE=text NAME=input_field2> > > The difficulty comes when I try to access these variables on the second >page. Currently I am using a script like this: > > $String = 'input_field'.$inc; > echo($$String); > >Sometimes my code requires multiple variables and conditions. When this >happens, using the above code is confusing a lengthy. Is there a way to >simplify this code at all?

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