The problem of changing the variable value of the address of the Employment Guidance Center for College and Technical Secondary School Graduates in Tianjin in PHP reference address

Copy the code The code is as follows:

$foo = 'Bob'; // Assign 'Bob' to $foo
$bar = &$foo; // Reference $ through $bar foo
echo $foo.'
';
$bar = "My name is $bar"; // Modify the $bar variable
echo $bar.'
';
echo $ foo.'
'; // The value of $foo is also modified
?>

The above introduces the problem of changing the variable value of the address of the Tianjin College and Vocational School Graduates Employment Guidance Center in PHP, including the address of the Tianjin College and Vocational School Graduates Employment Guidance Center. I hope that friends who are interested in PHP tutorials can helped.