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@ 2017-07-11T20:41:33Z

<?php

    $re = '/(.*?)(\[\w{3}=\')(\w+\.\w+)(\'\])(.*?)(\[\w{3}=\')(\w+\.\w+).*/s';

    $str = 'Hello, view this pdf [PDF=\'hello.pdf\'] 
    and then view this PDF [PDF=\'goodmorning.pdf\']';
    
    
    $subst = '$1 <object data="https://myurl.com/media/$3"  class="pdf-shortcode-iframe" type="application/pdf">  <iframe class="pdf-shortcode-iframe" src="https://docs.google.com/viewer?url=https://myurl.com/media/$3&embedded=true"></iframe>   </object>$5 <object data="https://myurl.com/media/$7" class="pdf-shortcode-iframe" type="application/pdf">   <iframe class="pdf-shortcode-iframe" src="https://docs.google.com/viewer?url=https://myurl.com/media/$3&embedded=true"></iframe>    </object>';
    
    $result = preg_replace($re, $subst, $str);
    
    echo $result;

Output for git.master, git.master_jit, rfc.property-hooks: Hello, view this pdf <object data="https://myurl.com/media/hello.pdf" class="pdf-shortcode-iframe" type="application/pdf"> <iframe class="pdf-shortcode-iframe" src="https://docs.google.com/viewer?url=https://myurl.com/media/hello.pdf&embedded=true"></iframe> </object> and then view this PDF <object data="https://myurl.com/media/goodmorning.pdf" class="pdf-shortcode-iframe" type="application/pdf"> <iframe class="pdf-shortcode-iframe" src="https://docs.google.com/viewer?url=https://myurl.com/media/hello.pdf&embedded=true"></iframe> </object>

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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