Is PHP\'s `var` Keyword Still Relevant After the Introduction of `public`?

PHP's 'var' Keyword: A Relic from the Past

Initially introduced in PHP4, the 'var' keyword was utilized to declare class member variables. However, with the advent of PHP5, this syntax has become obsolete. PHP5 now utilizes the 'public' keyword to achieve the same functionality.

While 'var' remains functional in PHP5, it generates an E_STRICT warning for versions 5.0.0 through 5.1.2, indicating its impending deprecation. As of PHP 5.3, 'var' has been resurrected as a synonym for 'public,' effectively rendering it unnecessary.

To demonstrate its usage in PHP4:

class foo {
    var $x = 'y'; // Declares a class member variable
}

In PHP5 and beyond, this can be rewritten as:

class foo {
    public $x = 'y'; // Declares a class member variable
}

In conclusion, the 'var' keyword is a remnant of PHP4 that has been superseded by the 'public' keyword in PHP5. While it may still function in certain PHP5 versions, its use is strongly discouraged due to potential deprecation warnings and redundancy with the 'public' keyword.

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