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@ 2022-04-01T07:45:44Z

<?php

$string = 'An aim is a goal or objective Hotel in Canada to achieve in life. In order to succeed in life, one must have Hotel in, Canada a goal. My aim in life is to be a teacher. Teaching is a noble and responsible profession. I have come City Hotels to know that the ever-increasing misery and distress, are City, Hotels due to the ignorance and illiteracy City. Hotels of the people of our country. So I have decided to spread education among the masses Hotel. in Canada as much as possible within my humble power. As a teacher, I shall try my best to impart man-making education.';

$keywords = ['City Hotels', 'Hotel in Canada'];

foreach ($keywords as $keyword) {
    $regex = preg_replace('/ +/', '[.,\s]+', preg_quote($keyword, '/'));
    $string = preg_replace("/\b$regex\b/iu", '**$0**', $string);
}
var_export($string);

Output for git.master, git.master_jit, rfc.property-hooks: 'An aim is a goal or objective **Hotel in Canada** to achieve in life. In order to succeed in life, one must have **Hotel in, Canada** a goal. My aim in life is to be a teacher. Teaching is a noble and responsible profession. I have come **City Hotels** to know that the ever-increasing misery and distress, are **City, Hotels** due to the ignorance and illiteracy **City. Hotels** of the people of our country. So I have decided to spread education among the masses **Hotel. in Canada** as much as possible within my humble power. As a teacher, I shall try my best to impart man-making education.'

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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