PregMach with php GET method - php

Question

I have a page test.php in which I have a list of names:
name1='992345'
name2='332345'
name3='558645'
name4='434544'
In another page test1.php?id=name2 and the result should be:
332345
I've tried this PHP code:
<?php
$Text=file_get_contents("test.php")
$id = $_GET["id"];
;preg_match_all('/$id.=\'([^\']+)\'/',$Text,$Match);
$fid=$Match[1][0];
echo $fid; ?>
if the code is used like this
<?php
$Text=file_get_contents("test.php")
;preg_match_all('/name3=\'([^\']+)\'/',$Text,$Match);
$fid=$Match[1][0];
echo $fid; ?>
the result is good
558645
But i wanto be able to change the name of '/name3=\' from ;preg_match_all('/name3=\'([^\']+)\'/',$Text,$Match) with GET method like this if test1.php?id=name4 the result wil bee 434544.

Answer 1

In '(single quote) the variable is treated as a text not as variable.
change this
preg_match_all('/$id.=\'([^\']+)\'/',$Text,$Match);
to
preg_match_all("/$id=\'([^\']+)\'/",$Text,$Match);

Answer 2

Try this code:
<?php
$Text=file_get_contents("test.php");
$id = $_GET["id"];
$regex = "/".$id."=\'([^\']+)\'/";
preg_match_all($regex,$Text,$Match);
$fid=$Match[1][0];
echo $fid; ?>
This will work.
EDIT:
<?php
$Text=file_get_contents("test.php");
if(isset($_GET["id"])){
$id = $_GET["id"];
$regex = "/".$id."=\'([^\']+)\'/";
preg_match_all($regex,$Text,$Match);
$fid=$Match[1][0];
echo $fid;
} else {
echo "There is no name selected.";
}
?>