Solve the compatibility problem of PHP4.0 and PHP5.0 class constructors_PHP Tutorial

In PHP5.0 and above, it is also compatible with the constructor definition rules of version 4.0. If both the 4.0 constructor and the __construct() function are defined, the __construct() function takes precedence.
In order to make the class code compatible with PHP 4.0 and 5.0 at the same time, you can take the following method:

Copy the code The code is as follows:

class MyClass {
function __construct() { //for PHP5.0
echo 'this is class2 construct';
}
// In order to make the class The code is compatible with both PHP4.0 and 5.0
function MyClass() { //for PHP4.0
$this->__construct();
}
}
$c3 = new MyClass ;
?>

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