CODEWITHSUNDEEP
phpjavascriptmysqlhtmldynamic
Cripto
Cripto

Reputation: 3751

How to handle unknown number of items from a form in php

Working on making an inventory page for work. I have written a page that will loop through my data base and display all of the items in there.

include 'auth.php'; //to change login, please authenticate 
$sql="SELECT * FROM `inventory` ORDER BY `id` asc;";
$result=mysql_query($sql);
while($rows = mysql_fetch_array($result)){
echo    $rows["name"];
<input type="text" name="<? echo $rows["id"];  ?>" id="<? echo $rows["id"] ?>" placeholder="Who will go in here?" />
}

The above code is doing what I want. I would like to put this in a form and have a submit button. Let's say the form is

<form method="POST" action="page.php">

Now I want to be able to write a page.php so that it can handle all of the data regardless of the number of items. In the past I have done the following

$fname=$_POST['fname'];
$lname=$_POST['lname'];
$phone=$_POST['phonenum'];
$email = $_POST['email'];
$age = $_POST['b18'];

But that won't work as I will have an unknown amount of post. Please write any code you like. I prefer document pages.

Upvotes: 2

Views: 2844

Answers (2)

yunzen
yunzen

Reputation: 33439

$_POST is just an ordinary hash array, so you can loop over it

foreach ($_POST as $key => $value) {
  print "{$key}: {$value}<br />";
}

edit
well you need to do some special adjustments, if your values are array values (POST key with [] at the end of the name)

edit it's of no use if you try

foreach ($_POST as $varname => $value) {
  ${$varname} = $value;
}

because you don't know the name of the variables;

Upvotes: 6

Seder
Seder

Reputation: 2763

I will start from your code 

include 'auth.php'; //to change login, please authenticate 
 $sql="SELECT * FROM `inventory` ORDER BY `id` asc;";
$result=mysql_query($sql);
while($rows = mysql_fetch_array($result)){
echo    $rows["name"];
<input type="text" name="id[]" id="<? echo $rows["id"] ?>" value = "<? echo $rows["id"] ?>"      placeholder="Who will go in here?" />
}

Now in your page.php

<?php 
foreach($_POST['id'] as $id):
  echo $id; 
endforeach;
?>

This will print out all the values of the input named id[] What i did for you is naming the input with array at the end and then print that array I hope that's what you want

Upvotes: 0

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