How to get Key from this string array in PHP [duplicate] - php

Question

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How create an array from the output of an array printed with print_r?
(11 answers)
Closed 1 year ago.
Array ( [status] => 1 [message] => Logged In Successfully. )
I Want to access status from this array like string.
I fetch this Response from API.
It's look not good.not like array or not like json.
I am not able to access key,so any one can help me, now.

Answer 1

You could achieve this using preg_match perhaps? See it working over at 3v4l.org but it is not a very dynamic solution and I'm assuming the status will always be a single integer.
preg_match('/(\Sstatus\S => \d)/',
'Array ( [status] => 1 [message] => Logged In Successfully. )',
$matches
);
if(!empty($matches))
{
$status = (int) $matches[0][strlen($matches[0]) -1]; // 1
}

Answer 2

To improve #Jaquarh's answer, you could write this function that helps you extract the values using any desired string, key and expected type.
I have added a few features to the function like not minding how many spaces come between the => separator in the string, any value-type matching, so that it can retrieve both numeric and string values after the => separator and trimming of the final string value. Finally, you have the option of casting the final value to an integer if you want - just supply an argument to the $expected_val_type argument when you call the function.
$my_str is your API response string, and $key_str is the key whose value you want to extract from the string.
function key_extractor($my_str, $key_str, $expected_val_type=null) {
// Find match of supplied $key_str regardless of number of spaces
// between key and value.
preg_match("/(\[" . $key_str . "\]\s*=>\s*[\w\s]+)/", $my_str, $matches);
if (!empty($matches)) {
// Retrieve the value that comes after `=>` in the matched
// string and trim it.
$value = trim(substr($matches[0], strpos($matches[0], "=>") + 2));
// Cast to the desired type if supplied.
if ($expected_val_type === 'int') {
return ((int) $value);
}
return $value;
}
// Nothing was found so return null.
return NULL;
}
You could then use it like this:
key_extractor($res, 'status', 'int');
$res is your API response string.