How do you iterate through Input::post() data? - php

Question

To my understanding Input::post(); with no parameters returns an array containing all the data from a specific POST..
I am doing this $all_input = Input::post();
But then I am iterating through the array Java-like (is that how you even do it?)
for ($i=0; $i<count($all_input); $i++)
{
if (strpos($all_input[$i], 'something') == true) // ERROR...
but the application crashes with error Undefined offset: 0 which I believe means that the index was not found?
I have also tried adding this to no avail:
if (!isset($all_input))
{
return;
}
If so how can you access the data to iterate through them? I know it contains data cause I can see them when I press the button during the debugging on the browser if I remove that code.
If you didn't already figure it out I am coming from Java developer and I have just started learning php so bear with me please.

Answer 1

According to this: https://fuelphp.com/docs/classes/input.html#/method_post Input::post(); will return $_POST which is an assoc array.
Here is the source code, because the fuelphp's documentation doesn't cover it exactly.
/**
* Fetch an item from the POST array
*
* #param string $index The index key
* #param mixed $default The default value
* #return string|array
*/
public static function post($index = null, $default = null)
{
return (func_num_args() === 0) ? $_POST : \Arr::get($_POST, $index, $default);
}
You need to refer with your input names, so if you have an input which you call 'name', in that case you need to refer $all_input['name']. You can get your keys by using array_keys() function. Also it's better if you use foreach in this situation. Like:
foreach($all_input as $key => $value) {
echo 'Input key: ' . $key . ' value: ' . $value;
}
If you left the $key => you will get only the value, you can left it, if you doesn't use it inside the foreach.
If you don't want to use foreach somewhy:
$all_input = Input::post();
$keys = array_keys($all_input);
for ($i = 0; $i < count($keys); $i++) {
if (strpos($all_input[$keys[$i]], 'something') == true) {
// Do your stuff here.
}
}
But I still recommend foreach if possible, it's less overhead and cleaner code.

Answer 2

This won't work because you are dealing with an Object (Input) not an array.
I recommend using a foreach loop vice a for loop. To verify the contents/structure of the Input Object you can also do a dd() to see the Input Object in its entirety.
Basically,
$input = Input::post();
foreach($input as $i) {
echo $i; //this is a property of the Input Object. if you have arrays or other objects store inside of it, you may need to go deeper into the oject either with a foreach loop again or by calling the property directly ($i->property)
};