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moff/reg-exp-repeats.php

Created February 28, 2017 19:09
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reg-exp-repeats.php
<?php
$arr = [
"hello world world",
"hello world world world",
"hello world world world world",
"hello hello world",
"hello hello hello hello world"
];
foreach ($arr as $str) {
echo preg_replace('/(\w{2,})(?=.*?\\1)\W*/', '',$str) . PHP_EOL;
}
?>
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