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@ 2021-09-07T09:05:09Z

<?php

$doc = new \DomDocument();
$doc->loadHtml('<div class="foo"></div>');
$div = $doc->getElementsByTagName("div")->item(0);

$newValue = "bar&bar";

foreach ($div->attributes as $attr) {
    $attr->value = $newValue;
    
    if ($attr->value === null) {
        echo "Null\n";
    } elseif ($attr->value === "") {
        echo "Empty\n";
    } elseif ($attr->value === $newValue) {
        echo "Same\n";
    } else {
        echo "Something else: '" . $attr->value. "'\n";
    }
}

foreach ($div->attributes as $attr) {
    $div->setAttribute("class", $newValue);
    
    if ($attr->value === null) {
        echo "Null\n";
    } elseif ($attr->value === "") {
        echo "Empty\n";
    } elseif ($attr->value === $newValue) {
        echo "Same\n";
    } else {
        echo "Something else: '" . $attr->value. "'\n";
    }
}

Output for git.master, git.master_jit, rfc.property-hooks: Warning: main(): unterminated entity reference bar in /in/Lhu2c on line 10 Empty Same

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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