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Feb 22, 2025 am 10:46 AM

Fun with Array Interfaces

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PHP? ?? ?????? ?? ?????? Python? ??? ??? ??? ?? ????? ?? ??? ??? ??? ????? ? ? ????. ?? ?? ??? ?? ???? ???? ?? ? ? ??? ?? ??, ??? ?? ?? ? ???? ?? ??? ????? ?? ?? ?? ??? ??? ?????.
    ?????? ???? ??? ??? ???? ?? ???? ??? ?????. ?? ?? ??? ????? ?? ??? ???? ??? ???? ?? ??? ??????. PHP? ??? ?????? ???? ??? ??? ??? ?? ??? ?? ?? ? ????? ?????? ?????.
  • PHP? ,
  • ? ?????? ??? ???, ?? ?? ??? ? ?? ??? ???? ? ??? ?????. ? ?????? ??? ?, ??? ?? ?? ? ID? ?? ??? ??? ? ??? ??? ?? ?? ???? ???? ????? ??? ??? ??? ? ??? ? ????.
  • ?? ?? ????? ??? ???? ??????? ?? ?? ??? ?? ?? ??? PHP?? ??? ??? ????????. ?? Python? ??? ??? ?? ????? ?? ??? ??? ??????? ??? ?????.
  • ?? ?? ? ?? ?? ??? : Countable ??? ???? ?? ?? ?? (PHP? ??)? ???? ??? ???? ?? ? ? ????. ArrayAccess ??? ??? ? ???? Iterator ??? : count()
  • ?? ??? ?? ??? ???? (??? ???)?? PHP?? ??? ?? ? ? ??? ?? ???? ?????.
PHP? ???? ?? ?????? ?????? ?? ? ? ????.

?????? ??? ?? ??? ???? ???? ?????? ???? ?????? ??????.

? ?????? ???? ?? ??????
class Members {
    public function __construct(array $members) {
        $this->members = $members;
    }

    // 其他方法
}
???? ??????. ??? ?? ??? ?? ???? ???? ???? : .

__iter__ ??? ???? ? ?? ??? ??? ????. ???? ???? ? ?? ??? ??? ????.

SPL ? PHP ????? PHP? ????? ??? ?????? ???? ??? ??? ???? ?? ??? ?? ?? ? ????? ?????? ?????.

class Members implements Iterator {
    private $members;
    private $position = 0;

    public function __construct(array $members) {
        $this->members = $members;
    }

    public function current() {
        return $this->members[$this->position];
    }

    public function key() {
        return $this->position;
    }

    public function next() {
        $this->position++;
    }

    public function rewind() {
        $this->position = 0;
    }

    public function valid() {
        return isset($this->members[$this->position]);
    }
}

$ls = new Members(["你", "我"]);

foreach ($ls as $member) {
    echo $member . "\n";
}
??? ????? ? ??? ?? ?? ? ????? ? ??? ??? ???? ??? ??? ?? PHP ????? (SPL)? ???? ????.

? ??? ????? ??? ???? ????. ??? ?? __contains__? ??????. ? ?? ?? ?

?? ?? ?????.
class Members {
    public function __construct(array $members) {
        $this->members = $members;
    }

    public function contains($member) {
        return in_array($member, $this->members);
    }
}

$members = new Members(["你", "我"]);

if ($members->contains("我")) {
    echo "我是一個(gè)成員!\n";
}
???, ??? ??? SPL?

???.

???? ??? ????? ??? ????? ? ??? ??.
isset($myObject["test"]);

?? ????? ? ?? ??? ?????? ?? ??? ?? ????. ?? ??!

??? ??? ?? ?? ??? ? ?? ????
class Members {
    public function __construct(array $members) {
        $this->members = $members;
    }

    // 其他方法
}
? ?? ?? ??? ? ????.

??? ?????

??? ?? ID? ?? ???????.
class Members implements Iterator {
    private $members;
    private $position = 0;

    public function __construct(array $members) {
        $this->members = $members;
    }

    public function current() {
        return $this->members[$this->position];
    }

    public function key() {
        return $this->position;
    }

    public function next() {
        $this->position++;
    }

    public function rewind() {
        $this->position = 0;
    }

    public function valid() {
        return isset($this->members[$this->position]);
    }
}

$ls = new Members(["你", "我"]);

foreach ($ls as $member) {
    echo $member . "\n";
}
??? ???? ????? ???!

??? ?? ? ?? ??? ???????. ?? ??? ??? ??? ?? ??? ?????. ?? ??? ??? ???? ??? ?? ? ?? ??????.

????, github?? ??? ??????? ???? ?? ????
class Members {
    public function __construct(array $members) {
        $this->members = $members;
    }

    public function contains($member) {
        return in_array($member, $this->members);
    }
}

$members = new Members(["你", "我"]);

if ($members->contains("我")) {
    echo "我是一個(gè)成員!\n";
}
? ??????. ???? ???? ?? ?? SitePoint? ?? ??? ??????. ??? ?? ??? OAUTH ???? ??????.

<<> ?????

isset($myObject["test"]);
<<> ?????? ??? ?? ?? ? ? ????.

???? ???? ???

???? ??? ? ????.

"/Users/Show"?? GET ??? ???? ???? ?? ?? ?? ? ????.

<<> ????? composer install ??? ?? ? ???? ?????? ??? ???? ???? ????. index.php ?? ? <<>? ??? ??? ??? ? ??????. ???? ??? ???

??? ??? ?? ?? ???? ?? ?????. ?? ??? ??? ????? ??? ????? ?? ??? ?? ???

? ???? ?? ? ? ????. Countable ?????? ?? ID? ?? ??? ???????.

? ?? ????, ??? ?? ? ?? ?? ???? Countable ? ??? ?? ? ? ????. count count()? ????

? ???? ?? ID? ??? ? ??? ??? ? ????? ?? ? ????.

????

??? ??? ??? ????. ?? ?? ?? ??? ???? ? ?? ??? ?? ??? ??? ????. ??? ???, ??? ?? ?? ????? ?? ???? ??? ?? ?? ? ????.
interface Multiplier {
    public function multiply($num1, $num2);
}
<<> ?????

?? ????? ?? ???? ?????? ????! ArrayAccess ?????? ???? ?? ?????. ???? ?? ?????. ???? ???? ??? ???? ?? ?? ?? ?? ??? ???? ??? ?? ?? ??? ??? ?? ??? ????? ? ?? ??? ?? ?????.

??, ?? ??? ???????

??? ?? ??? ?? ??? ???? ??? ?? ?? ??? ?? ?? ? ? ????.

??? ? ? ??? ? ??? ??? :

<,>? ???? ??? ??? ?? ??? ???? ??? ???? ?? ??? ??? ?????. ???? ??? ? ??? ? ??? ??? ?? ? ?? ??? ??? ID? ????? ???? ?? ??? ????. ArrayAccess ???? ??? ??? ???

???? ???? ????. ?? 10 ?? ??? ?? ??? ??? ???? ???? ?? ?? 10 ?? ??? ????. rewind

class Members {
    public function __construct(array $members) {
        $this->members = $members;
    }

    // 其他方法
}
???? ??? ????? ??? ???? ?? ?????. ?? ??? ?? ??? ???? ?? ? ? ????.

valid() ?

???? ??? ???? ?? ??? ?? ?? ?????. ??? ??? ??, ??? ??? ???? ?? ??? ?? ID? ???? ?? ????.
class Members implements Iterator {
    private $members;
    private $position = 0;

    public function __construct(array $members) {
        $this->members = $members;
    }

    public function current() {
        return $this->members[$this->position];
    }

    public function key() {
        return $this->position;
    }

    public function next() {
        $this->position++;
    }

    public function rewind() {
        $this->position = 0;
    }

    public function valid() {
        return isset($this->members[$this->position]);
    }
}

$ls = new Members(["你", "我"]);

foreach ($ls as $member) {
    echo $member . "\n";
}

key() ????? current() ???. ??? ??? ??? ???? ?? ??? ???? ?? ??? ???? ?????. ?? ?? ??? ??? ??? ??? ?? ?? ??? ?? ? ????.

class Members {
    public function __construct(array $members) {
        $this->members = $members;
    }

    public function contains($member) {
        return in_array($member, $this->members);
    }
}

$members = new Members(["你", "我"]);

if ($members->contains("我")) {
    echo "我是一個(gè)成員!\n";
}

??? ???! ??? ??? ??? ?? ??? ?? ???? ?????. API ??? ?????? ?? ??? ?? ?? ? ??? ?? ? ??? ?????? ???? ?? ???????. ???? ??? ??? ? ??? ??? ??? ??? ? ??? ? ????. ??? ?????. next ??? ??? ?? ???

? ???? ?? ?? ??? ?? ??? ?? ? ? ????.
isset($myObject["test"]);

??

?????? ??? 2 ????. ?? ?? ?? ?? ??? ????? ?? ??? ?? ? ? ????.? ??? ?? ???? ??? ?? ?? ???? ?? ?????. ???? ??? ???? ?? ?? ??? ????!

? ??? ?? ?????? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

? ????? ??
? ?? ??? ????? ???? ??? ??????, ???? ?????? ????. ? ???? ?? ???? ?? ??? ?? ????. ???? ??? ???? ???? ??? ?? admin@php.cn?? ?????.

? AI ??

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???? ?? ???? ??? AI ?????.

Video Face Swap

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??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!

???

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???++7.3.1

???++7.3.1

???? ?? ?? ?? ???

SublimeText3 ??? ??

SublimeText3 ??? ??

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???? 13.0.1 ???

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??? PHP ?? ?? ??

???? CS6

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SublimeText3 Mac ??

SublimeText3 Mac ??

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