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@ 2013-07-25T21:04:22Z

<?php

function inject_hyphens($word, $positions)
{
  $pad = 0;
  foreach ($positions as $position)
  {
    $word = substr($word, 0, $position + $pad + 1) . '-' . substr($word, $position + $pad + 1, strlen($word));
    $pad++; 
  }
  return $word;
}

$input = array('syl-labification',
               'sylla-bification',
               'syllabi-fication',
               'syllabifi-cation',
               'syllabifica-tion',
               'syllabification'
              );

//wanted $output = 'syl-la-bi-fi-ca-tion';

$positions = array();

foreach($input as $word)
{
  preg_match_all('/-/', $word, $matches, PREG_OFFSET_CAPTURE);
  foreach($matches[0] as $key => $value)
  {
    $positions[] = $value[1];
  }
}

$positions = array_unique($positions);
var_dump(inject_hyphens('syllabification', $positions));

Output for git.master, git.master_jit, rfc.property-hooks: string(20) "syll-ab-if-ic-at-ion"

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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