如何用PHP过滤字符串？ [重复]

Question

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• What kind of string is this? How do I unserialize this string? [duplicate] 2 answers

I have a plugin exporting a bunch of strings from a database for me. The data returned is in a format like this

a:3:{i:0;s:8:"Skeletal";i:1;s:6:"Cardio";i:2;s:8:"Muscular";}

a:3:{i:0;s:14:"Access to care";i:1;s:15:"Confidentiality";i:2;s:20:"Consent to treatment";}

I can apply a php function to filter the data, how would I get it to return like this, using a function.

Skeletal, Cardio, Muscular

Access to care, Confidentiality, Consent to treatment

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Answer 1

Those strings are serialized variables. Arrays specifically. use unserialize() to get the array and then join() to comma separate it the way you want.

$unserialized_array = unserialize($string);
$comma_separated = join(', ', $unserialized_array);

echo $comma_separated;

edit: I think this is the simplest solution, but Obsidian Age's answer below provides a regex that will also do what you want (and you did ask for a regex);