Loop an array with form - php

Question

i'm working on some code it seems im stuck... anyone can fix the right source code for looping array form?
<pre>
<form action='' method='POST'>
<input type='text' name='jml'>
<input type='submit' name='submit'>
</form>
<form action='' method='POST'>
<?php
if(isset($_POST['jml'])){
$jml = $_POST['jml'];
for($i=0;$i<$jml;++$i){
?>
Stuff Name <input type="text" name="name">&nbsp
Stuff Price <input type='text' name='price'><br>
<br>
<?php
}
echo "<input type='submit' name='submit2'>";
echo "</form>";
}
if(isset($_POST['submit2'])){
$name[] = $_POST['name'];
$price[] = $_POST['price'];
global $jml;
for($i=0;$i<$jml;++$i){
echo $name.' '.$price.'<br>';
}
}
?>
</pre>
i was basic at C++ it's so easy to loop, but i'm still much to learn on this php so anyone can help me please?

Answer 1

What you need to do first is if you're expecting multiple row fields, put a [] in your name attribute in text fields. Example:
<input type="text" name="name[]">
This in turn will accept multiple text inputs under the same name turning it into an array.
Next, since you're reliant on the number of fields to be generated by $jml = $_POST['jml']; this will just be available on the first request. On the next submission this will be gone. Instead of using that with a global which doesn't make sense, just use the count of the submitted text fields.
$name = $_POST['name'];
$price = $_POST['price'];
$count = count($name); // get count
Take not that this is reliant to the forms all fields being complete.
After that, its just basic array pointing. echo $name[$i]:
Revised code:
<pre>
<form action='' method='POST'>
<input type='text' name='jml'>
<input type='submit' name='submit'>
</form>
<form action='' method='POST'>
<?php
if(isset($_POST['jml'])){
$jml = $_POST['jml'];
for($i=0;$i<$jml;++$i){
?>
Stuff Name <input type="text" name="name[]">&nbsp
Stuff Price <input type='text' name='price[]'><br>
<br>
<?php
}
echo "<input type='submit' name='submit2'>";
echo "</form>";
}
if(isset($_POST['submit2'])){
$name = $_POST['name'];
$price = $_POST['price'];
$count = count($name);
for($i=0;$i<$count;++$i){
echo $name[$i].' '.$price[$i].'<br>';
}
}
?>
</pre>

Answer 2

Use foreach loop This is how you can easily loop through an array:
foreach($_POST as $key=>$value){
echo $value;
}

Answer 3

Check this
Working code here http://main.xfiddle.com/7ffb488b/stackoverflow/Loopanarraywithform.php
<pre>
<?php
if(isset($_POST['submit'])){
echo "<form action='' method='POST'>";
$jml = intval($_POST['jml']);
for($i=0;$i<$jml;++$i){
?>
Stuff Name <input type="text" name="name[]">&nbsp
Stuff Price <input type='text' name='price[]'><br>
<br>
<?php
}
echo "<input type='submit' name='submit2'>";
echo "</form>";
}elseif(isset($_POST['submit2'])){
$name = $_POST['name'];
$price = $_POST['price'];
// global $jml;
$i=0;
foreach ($name as $key => $value) {
echo $value.' '.$price[$key].'<br/>';
$i++;
}
}else{?>
<form action='' method='POST'>
<input type='text' name='jml'>
<input type='submit' name='submit'>
</form>
<?php
}
?>
</pre>