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@ 2019-05-15T21:01:34Z

<?php

$string = "Lorem Ipsum is simply dummy text of the printing and typesetting industry. 
Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of 
type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into 
electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset 
sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker 
including versions of Lorem Ipsum.";

$iLoc = strpos($string, 'I');
$mLoc = strpos($string, 'm', $iLoc);
$ipsum = substr($string,$iLoc, $mLoc-$iLoc+1);

// Replace all Ipsums
$string = str_ireplace(
    $ipsum,
    'String',
    $string);

// Loop through string like an array, using the index to replace 's' values
for($i = 0; $i < strlen($string); $i++){
    if($string[$i] === 's' || $string[$i] === 'S' ){
        $string[$i-1] = "\\";
        $string[$i] = '$';
    }
}

$string = str_replace(
(stristr($string, '\\', true)),
'P_H+?P',
$string);

     
var_dump($string);

Output for git.master, git.master_jit, rfc.property-hooks: string(587) "P_H+?P\$tring \$\$imply dummy text of the printing and typ\$etting ind\$try. P_H+?P\$tring h\$ been the ind\$try\$\$tandard dummy text ever\$ince the 150\$, when an unknown printer took a galley of type and\$crambled it to make a type\$pecimen book. It h\$\$urvived not only five centuri\$, but a\$o the leap into electronic typ\$etting, remaining \\$entially unchanged. It w\$ popular\$ed in the 196\$ with the rele\$e of Letr\$et \$hee\$ containing P_H+?P\$tring p\\$ag\$, and more recently with d\$ktop publ\$hing\$oftware like Ald\$ PageMaker including ve\$io\$ of P_H+?P\$tring."

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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