Fetching multidimensional array

Question

despite my efforts I wasn't able to find a suitable solution. Here is the problem:

All the data comes from a form with text fields named name[], gender[], and age[].

print_r($_POST) looks like:

[name] => Array ([2] => Adam [6] => Suzy )
[gender] => Array ( [2] => male [6] => female )
[age] => Array ( [2] => 30 [6] => 25 )

I am trying to iterate it like this:

foreach ($array as $value)
{
echo $value['name'].$value['gender'].$value['age']."<br>";
}

The result should look like this:

Adam - male - 30
Suzy - female - 25

Can you explain more about what you're starting with? $array as you have it written will not parse. Is this your actual code? Are you asking how to define the array, or do you already have an array (somewhat) like what you've shown and you're asking how to iterate/output it? — Don't Panic
– Don't Panic, Commented Jul 20, 2018 at 16:42
Lets say I have a from with multiple rows. Each row is containing 3 text fields filled with name, gender and age. by select few of them and post for processing I am getting the arrays I posted. I solved this question once 5-6 yrs ago but cant remember how :) — Miro Arsov
– Miro Arsov, Commented Jul 20, 2018 at 16:59
@MiroArsov I updated the question with the info from your comments. Please feel free to re-edit if it's not to your liking. — Don't Panic
– Don't Panic, Commented Jul 20, 2018 at 17:00

SQL Hacks · Accepted Answer · 2018-07-20 16:55:18Z

2

You are close - but the syntax for creating arrays is slightly different.

$array = array (
   array('name' => 'Adam', 'gender' => 'male', 'age' => 30),
   array('name' => 'Suzy', 'gender' => 'female', 'age' => 25),
);
foreach ($array as $value)
{
   echo $value['name'].$value['gender'].$value['age']."<br>";
}

You've got two options - you could create an array of two items; each has three details about a single person. That's what I did and it suits the loop you've shown.

Or you can have three parallel arrays - one with two names, one with two genders and one with two ages. That second way would look more like:

$array = array(
  'name' => array('Adam','Suzy'),
  'gender' => array('male','female'),
  'age' =>  array(30,25)
);

But it would be harder to get the output you want from that.

$array2 = array(
  'name' => array('Adam','Suzy'),
  'gender' => array('male','female'),
  'age' =>  array(30,25)
);

for($i=0;$i<count($array2['name']);$i++){
  echo $array2['name'][$i].$array2['gender'][$i].$array2['age'][$i].'<br/>';
}

edited Jul 20, 2018 at 16:55

answered Jul 20, 2018 at 16:40

SQL Hacks

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4 Comments

Edward Over a year ago

We should be encourging people to use the new(ish) array syntax imo. $array = ['value1', 'value2'];

Miro Arsov Over a year ago

Thank you for your answer! All the data comes from a form with text fields and the arrays are name[], gender[], and age[].

Miro Arsov Over a year ago

[name] => Array ( [2] => Adam [6] => Suzy ) [gender] => Array ( [2] => male [6] => female ) [age] => Array ( [2] => 30 [6] => 25 ) This is exactly how my print_r($_POST) looks like!

Miro Arsov Over a year ago

Yep, that one was tested about an hr ago. Doesnt work... code [name] => Array ( [2] => Adam [6] => Suzy ) [gender] => Array ( [2] => male [6] => female ) [age] => Array ( [2] => 30 [6] => 25 ) code

Don't Panic · Accepted Answer · 2018-07-20 17:04:23Z

1

Each of the arrays in $_POST have the same set of keys:

$_POST = array(
    'name' =>   array(2 => 'Adam', 6 => 'Suzy'),
    'gender' => array(2 => 'male', 6 => 'female'),
    'age' =>    array(2 => '30',   6 => '25')
)

You can iterate one of the inner arrays, and use its key to access the corresponding values in the other arrays.

foreach ($_POST['name'] as $key => $name) {
    echo $name . $_POST['gender'][$key] . $_POST['age'][$key] . "<br>";
}

edited Jul 20, 2018 at 17:04

answered Jul 20, 2018 at 16:53

Don't Panic

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8 Comments

Don't Panic Over a year ago

Not working in what way? What does it do? Are there errors?

Don't Panic Over a year ago

I tried out the link. The $_POST values show up as expected, and I don't see any errors, but there's no output besides that when submitting the form. Are you using the foreach loop from this answer on that page, or something else?

Miro Arsov Over a year ago

Miro Arsov Over a year ago

<? echo "<pre>"; print_r($_POST); echo "</pre>"; $array2 = array( $name,$gender, $age ); for($i=0;$i<count($array2['name']);$i++){ echo $array2['name'][$i].$array2['gender'][$i].$array2['age'][$i].'<br/>'; } ?>

Miro Arsov Over a year ago

Tell me what is this..... I am writing since 2002(ocasionaly) and never had such issu. The problem can be solved "dumb" way of course!

|

Burhan Ibrahimi · Accepted Answer · 2018-07-20 16:38:05Z

0

foreach ($array as $id=>$value)
{
    echo $value . $gender[$id] . $age[$id] . "<br>";
}

answered Jul 20, 2018 at 16:38

Burhan Ibrahimi

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Comments

A l w a y s S u n n y · Accepted Answer · 2018-07-20 17:05:54Z

First of all I've modified the array structure that you posted on your question because it is not valid for in php. Then If I don't misunderstood you requirements then you've this array structure and you want to archive this-

<?php
$array = array (
    'name'=>array('Adam', 'Suzy'),
    'gender'=>array('male', 'female'),
    'age'=>array(30, 25)
);
$i=0;
foreach ($array as $key=>$value)
{   
    if($i==2)break;
    echo $array['name'][$i]."-".$array['gender'][$i] ."-". $array['age'][$i] ."<br>";
    $i++;
}
?>

OR

<?php
$array = array (
    'name'=>array('Adam', 'Suzy'),
    'gender'=>array('male', 'female'),
    'age'=>array(30, 25)
);

foreach ($array['name'] as $index=>$name)
{   
    echo $name."-".$array['gender'][$index] ."-". $array['age'][$index] ."\n";
}
?>

Program Output:

Adam-male-30
Suzy-female-25

DEMO: https://eval.in/1039966

Miro Arsov · Accepted Answer · 2018-07-20 22:06:41Z

@Being Sunny Veeeery close to that sir I'v used back in 2003. Here is the working solution:

<?
echo "<pre>";
print_r($_POST);
echo "</pre>";


foreach ($_POST['name'] as $key => $name) {
    echo "NAME=".$_POST['name'][$key]."gender=" . $_POST['gender'][$key] . "AGE=".$_POST['age'][$key] . "<br>";
}

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>test</title>
</head>
<body>
WOKSING SOLUTION:
<code>echo "<pre>";
print_r($_POST);
echo "</pre>";


foreach ($_POST['name'] as $key => $name) {
    echo "NAME=".$_POST['nemae'][$key]."gender=" . $_POST['gender'][$key] . "AGE=".$_POST['age'][$key] . "<br>";
}
</code>
<form method="post">
<input type="text" name="name[]" />
<input type="text" name="gender[]"/>
<input type="text" name="age[]"/>
<br />
<input type="text" name="name[]" />
<input type="text" name="gender[]"/>
<input type="text" name="age[]"/>

<input type="submit" />
</form>
</body>
</html>

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