PHP ??? ?? ???? ???? ???
PHP ????? ???? ?? ??? ???? ???? ?? ??? ???? ? ??? ?????. ??. ??? ?? ?? ? ?? ??? ???? ?? ?? ??? ???? ? ????.
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<code class="php">public $var = array( 1 => 4, 2 => 5, );</code>
-
?? ??:
<code class="php">public $var = array( 1 => 4, 2 => (4+1), );</code>
-
?? ??:
<code class="php">public $var = 4+1;</code>
? ?? ?? ?? ?? ?? ???? ?????. ??? ?? ???? ??? ? ?? ? ? ?? ???? ? ? ?? ??? ?????. ?? ?? ??? ???? ????? ??? ?? ?? ???? ???? ?????.
PHP 5.6? ?? ??? ???
?? ??? ??? ?? PHP 5.6??? ??? ??????. ??? ???. ? ??? ??? ???? ?? ? ?? ??? ?? ??? ?? ?? ???? ???? ?? ? ??? ???? ??? ??? ??? ???? ??? ? ????.
<code class="php">class C {
const THREE = TWO + 1;
const ONE_THIRD = ONE / self::THREE;
const SENTENCE = 'The value of THREE is '.self::THREE;
public function f($a = ONE + self::THREE) {
return $a;
}
}
echo (new C)->f()."\n"; echo C::SENTENCE;</code>
? ??? ??? ?????.
4 The value of THREE is 3
??? PHP 5.6 ?? ????? ??? ?? ???? ?? ?? ??? ? ?? ???? ????.
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