How to pass an array to another page with PHP? - php

Question

I have an array which looks like:
$diseases= [
['letter' => 'A' , 'options' => "<div ..."],
....
];
And I pass the letter as a parameter in the URL. It works. But I can't understand how to make it print the options that correspond to the letter on the page. Thanks for reading.

Answer 1

You could put it in the session:
session_start();
$_SESSION['array_name'] = $array_name;
Or if you want to send it via a form you can serialize it:
<input type='hidden' name='input_name' value="<?php echo htmlentities(serialize($array_name)); ?>" />
$passed_array = unserialize($_POST['input_name']);

Answer 2

Try something like this:
<?php
$diseases = [
'A' => "<div>A</div>",
'B' => "<div>B</div>",
];
$letterAction = isset($_GET['letterAction']) ? $_GET['letterAction'] : ''; //if the letterAction parameter is defined in the URL, then get it's value
if (isset($diseases[$letterAction])) {
//if the letterAction is available in the array, then print it's value
//i.e. isset($diseases["A"]) would return true but isset($diseases["C"]) would return false in this case
echo $diseases[$letterAction];
}

Answer 3

You can use sessions to store information to be used on all pages:
session_start();
$_SESSION['diseases'] = $diseases; // store information to key data
On the other pages you use:
session_start();
print_r($_SESSION['diseases']);
If you only want the data to be set for 1 specific page you can use http_build_query()
$diseases = ['diseases' => $diseases];
$str = http_build_query($diseases);
echo "<a href='yourpage.php?$str'>click</a>";
Now on the next page you simply use:
parse_str($_GET['diseases'], $diseases);
print_r($diseases);