[SOLVED] for each loop ??

[ali_2kool2002]

hi can someone tell me how a for each loop works in english like as i dont understand this line?

 

foreach ($x as $key => $value)

where does key come from and value?? i understand x is  a variable storing an array?

 

the full code is below:

<?php

if($_POST['submit']){
echo $key;
}

$x=array("a" => "a was seleted" , "b" => "b was selected" , "c"  =>  "c was selected");

echo"<form method='POST' action=''>";

foreach ($x as $key => $value){

echo"<input type='radio' name='key' value='$value'>$key<br>";
}
echo"<br><input type='submit' name='submit' value='GET ME'>";

?>

[redarrow]

that me code dam lol

 

the key is the abc

 

and the value is the ansaws (a was selected) example.

[redarrow]

foreach is a loop that walks throw an array.

 

you set a array

 

example

 

$a=array("1","2","3");

 

now the array is a single array set with numbers using the foreach

we walk throw the array.

 

foreach($a as $x){

 

echo $x;

}

now the array get's all that in $a as $x we set the $a as $x to get

foreach to loop throw the array.

 

$x is also known as the value becouse we got all the array values.

 

 

now we set another array but this array has key's and values

 

$a=array("a" => "1", "b" => "2", "c" => "3");

 

what we have done is made a array that has keys a b c and told the

array that => abc are now got values of 123 so when we foreach we need the foreach to no that.

 

so foreach

 

foreach($a as $key => $value){

 

echo " $key <br> $value <br>";

 

}

 

now as you can see we set $a as $key abc and the value as 123

 

hope that helps.

[ali_2kool2002]

GREAT!! I LIKE UR DEMO ,,,, THANKS MATE,,,!!!

[redarrow]

Anymore lol cheers.