how to display the name of an array which is inside another array in php

Question

I am new to php and i have a small question.

This is my array

$cars=array( "1234"=> array("Toyota","100","2","white"),
            "2468"=> array("Mazda","1000","0","red"),
            "4587"=> array("Mercedes","200","0","green")
                        ); 
$_SESSION['cars']=$cars;

the elements 1234, 2468 and 4587 are basically registration numbers of the cars and my task is to insert these registration number in a table.

if( isset($_SESSION['cars']))
        {
        foreach($_SESSION['cars'] as $key)
        {?>
                <tr><td><?php echo $key?></td></tr>

this is wht i did but it gives me an error saying Notice: Array to string conversion.

can anyone tell me how to do this ? I'll be grateful

Rizier123 · Accepted Answer · 2014-11-18 22:46:01Z

2

This should work for you:

if( isset($_SESSION['cars'])) {

    foreach($_SESSION['cars'] as $key => $v)
        echo "<tr><td>" . $key . "</td></tr><br />";
}

EDIT:

It should work see this example:

<?php

    session_start();

    $cars = array(
                "1234"=> array("Toyota","100","2","white"),
                "2468"=> array("Mazda","1000","0","red"),
                "4587"=> array("Mercedes","200","0","green")
            ); 

    $_SESSION['cars'] = $cars;

    if( isset($_SESSION['cars'])) {

        foreach($_SESSION['cars'] as $key => $v)
            echo "<tr><td>" . $key . "</td></tr><br />";
    }

?>

Output:

1234
2468
4587

edited Nov 18, 2014 at 22:46

answered Nov 18, 2014 at 22:40

Rizier123

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11 Comments

Ashley Over a year ago

I tried that but it inserted 0 1 and 2 in the registration number column :S i am supposed to insert the whole value "1234" ..any idea wht shld b done ?

Sasha Over a year ago

It should work. In case you omitted some code between setting and using $_SESSION['cars'], maybe it does not have the content you expect it to have. You can just easily check it out with var_dump($_SESSION['cars']);

Ashley Over a year ago

@Rizier123 okay i am gonna check it out

Ashley Over a year ago

@Sasha alryt i'll check that

Ashley Over a year ago

@Sasha u r right :O..the values it self are 0 1 2 ...so why is it not storing 1234 as the name of elements of the outer array ?

|

Veve · Accepted Answer · 2014-11-18 23:39:44Z

0

<?php
        $cars=array( "1234"=> array("Toyota","100","2","white"),
            "2468"=> array("Mazda","1000","0","red"),
            "4587"=> array("Mercedes","200","0","green")
        );
        $_SESSION['cars']=$cars;
        //In separated file
        if(!isset($_SESSION)) session_start();
        if( isset($_SESSION['cars']))
        {
            foreach($_SESSION['cars'] as $key => $value)
            {
                echo "<tr><td> $key </td></tr>";
            }
        }
?>

edited Nov 18, 2014 at 23:39

Veve

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answered Nov 18, 2014 at 22:44

Rina Certis or AHR

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6 Comments

Ashley Over a year ago

Registration 0 1 2

Ashley Over a year ago

these r the values i got after writing the above code :S

Rina Certis or AHR Over a year ago

@Ashley Try my example, or can you add print_r($_SESSION['cars']);die(); in your code and show me the result?

Ashley Over a year ago

Array ( [0] => Array ( [0] => Toyota [1] => 100 [2] => 2 [3] => white ) [1] => Array ( [0] => Mazda [1] => 1000 [2] => 0 [3] => red ) [2] => Array ( [0] => Mercedes [1] => 200 [2] => 0 [3] => green ) )

Rina Certis or AHR Over a year ago

@Ashley, great! now , can you show me the code used to initialize $_SESSION['cars']?

|

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