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@ 2019-05-25T09:46:59Z

<?php
function swap_words($words, $synonyms) {
	$all_synonyms = array_unique(array_merge(...$synonyms));

	$result = [];
	$word = $words[0];
	if (in_array($word, $all_synonyms)) {
		foreach ($synonyms[1] as $replacement) {
			$result[] = "$replacement " . implode(' ', array_slice($words, 1));
		}
		foreach ($synonyms[2] as $replacement) {
			$result[] = implode(' ', array_slice($words, 1)) . " $replacement";
		}
	}

	$c = count($words) - 1;
	$word = $words[$c];
	if (in_array($word, $all_synonyms)) {
		foreach ($synonyms[1] as $replacement) {
			$result[] = "$replacement " . implode(' ', array_slice($words, 0, $c));
		}
		foreach ($synonyms[2] as $replacement) {
			$result[] = implode(' ', array_slice($words, 0, $c)) . " $replacement";
		}
	}

	return $result;
}

$words = ['no of', 'autumn', 'sales'];
$tot = ['1'=>array('count','total','num of','no of', 'no. of'),
		'2'=>array('count')];
print_r(swap_words($words, $tot));

$words = ['autumn', 'sales', 'count'];
print_r(swap_words($words, $tot));

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [0] => count autumn sales [1] => total autumn sales [2] => num of autumn sales [3] => no of autumn sales [4] => no. of autumn sales [5] => autumn sales count ) Array ( [0] => count autumn sales [1] => total autumn sales [2] => num of autumn sales [3] => no of autumn sales [4] => no. of autumn sales [5] => autumn sales count )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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