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@ 2020-07-26T00:57:14Z

<?php

$a = 1;
$b = 2;

$content = <<<BLOCK
    <h1>Some Html</h1>
    <hr>
    {IF:($a + $b === 3)}
        <b>Yes :)</b>
    {ELSE}
        <b>No :(</b>
	{ENDIF}
	
	Another one...
	{IF:($a + $b === 4)}
        <b>:)</b>
    {ELSE}
        <b>:(</b>
	{ENDIF}
	
	Some more Text
BLOCK;

echo render($content);

function render($content) {
    $match = preg_match_all('/{IF:\((.*?)\)}(.*?){ELSE}(.*?)({ENDIF})/s', $content, $matches, PREG_OFFSET_CAPTURE);

    if (!$match) {
        return $content;
    }
    
    $beforeIf = substr($content, 0, $matches[0][0][1]);
    $afterIf = substr($content, $matches[4][0][1] + strlen('{ENDIF}'));
    $evalCondition = eval('return (' . $matches[1][0][0] . ');');
    
    if ($evalCondition) {
        $ifResult = $matches[2][0][0];
    } else {
        $ifResult = $matches[3][0][0];
    }
    
    return
        $beforeIf .
        $ifResult .
        render($afterIf);
}

Output for git.master, git.master_jit, rfc.property-hooks: <h1>Some Html</h1> <hr> <b>Yes :)</b> Another one... <b>:(</b> Some more Text

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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