What's difference between __construct and function with same name as class has? [duplicate]

Answer 1

The first one is old php4 style "construct". It is basically the same as the __construct.

Answer 2

The difference is that calling a constructor by the same name of the class is deprecated.

Answer 3

The method named is the PHP4 way of doing a constructor.

For backwards compatibility, if PHP 5 cannot find a __construct() function for a given class, it will search for the old-style constructor function, by the name of the class. Effectively, it means that the only case that would have compatibility issues is if the class had a method named __construct() which was used for different semantics.

As of PHP 5.3.3, methods with the same name as the last element of a namespaced class name will no longer be treated as constructor. This change doesn't affect non-namespaced classes.

http://www.php.net/manual/en/language.oop5.decon.php

Answer 4

Constructor function named same as class is a backward compatibility feature for PHP4. It will not work with namespaced classes since PHP 5.3.3

If both __construct and class-named functions are present, then the __construct is used as constructor.

Answer 5

The difference is that PHP version 5.3.3 and above will treat function foo() as regular method and not constructor. Previous versions will treat it as a constructor.