Get string entry from textfile in php

Question

I have a question. How can i get a string from a entry in a textfile.

The texfile looks like:

Blabla2|123456
Blablablabla4|475387638
Blab1|387549900

Now i want to get from Blablablabla4 the number behind the |

Whats the read file function for it?

Answer 1

You can create a custom function, if you need that value often with different keys.

function getValueFromFile($file, $key){
    if (($handle = fopen($file, "r")) !== FALSE) {
      while (($data = fgetcsv($handle, 1000, "|")) !== FALSE) {
        if($data[0] == $key){
            fclose($handle);
            return $data[1];
        }
      }
      fclose($handle);
    }
    return false;
}

and simply call it like:

echo getValueFromFile("your file name", "Blablablabla4");