Logic behind foreach ($_POST as $key => $value)

[akshay]

Hello.

 

I understand logic behind foreach ($_POST as $key)  loop

 

but what about: foreach ($_POST as $key => $value)

 

I mean wha does => imply.

 

Please explain with an example.

 

Thank you!

[bugcoder]

an array is always consists of key value pair e.g

 

$numericArray = array(1=>'apple',2=>'orange');

or

$associativeArray = array('shoe'=>'abc','cloaths'=>'xyz')

 

when we loop throw both then

 

in $numericArray $key will be 1,2 and values will be apple and orange

and in $associativArray $key will be shoe, cloaths and values will be abc and xyz

 

you can do so

 

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

  echo  $key . ' = ' . $value;

}

 

[akshay]

Thanks a lot

[Maq]

http://us2.php.net/manual/en/control-structures.foreach.php

[cliffem]

How could you perform some action on the original value of $value before reaching the $key => $value stage?

?

foreach ($_POST as $key => $value) 

 

Comes from    <input type="text" class="required" name="nombre" />

 

Need to convert the original value of $value to proper case. It is now being entered helter shelter lowe, mixd, all caps, etc.

[blacknight]

when you loop the array use php case functions to change it EX: strtolower($value) this make it all lower no matter what the user has entred

[mac_gyver]

don't hijack threads for your problem. topic locked.