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@peter-mcconnell
Created March 25, 2014 08:48
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PHP singularize
<?php
/**
* Singularize a string.
* Converts a word to english singular form.
*
* Usage example:
* {singularize "people"} # person
*/
function singularize ($params)
{
if (is_string($params))
{
$word = $params;
} else if (!$word = $params['word']) {
return false;
}
$singular = array (
'/(quiz)zes$/i' => '\\1',
'/(matr)ices$/i' => '\\1ix',
'/(vert|ind)ices$/i' => '\\1ex',
'/^(ox)en/i' => '\\1',
'/(alias|status)es$/i' => '\\1',
'/([octop|vir])i$/i' => '\\1us',
'/(cris|ax|test)es$/i' => '\\1is',
'/(shoe)s$/i' => '\\1',
'/(o)es$/i' => '\\1',
'/(bus)es$/i' => '\\1',
'/([m|l])ice$/i' => '\\1ouse',
'/(x|ch|ss|sh)es$/i' => '\\1',
'/(m)ovies$/i' => '\\1ovie',
'/(s)eries$/i' => '\\1eries',
'/([^aeiouy]|qu)ies$/i' => '\\1y',
'/([lr])ves$/i' => '\\1f',
'/(tive)s$/i' => '\\1',
'/(hive)s$/i' => '\\1',
'/([^f])ves$/i' => '\\1fe',
'/(^analy)ses$/i' => '\\1sis',
'/((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$/i' => '\\1\\2sis',
'/([ti])a$/i' => '\\1um',
'/(n)ews$/i' => '\\1ews',
'/s$/i' => ''
);
$irregular = array(
'person' => 'people',
'man' => 'men',
'child' => 'children',
'sex' => 'sexes',
'move' => 'moves'
);
$ignore = array(
'equipment',
'information',
'rice',
'money',
'species',
'series',
'fish',
'sheep',
'press',
'sms',
);
$lower_word = strtolower($word);
foreach ($ignore as $ignore_word)
{
if (substr($lower_word, (-1 * strlen($ignore_word))) == $ignore_word)
{
return $word;
}
}
foreach ($irregular as $singular_word => $plural_word)
{
if (preg_match('/('.$plural_word.')$/i', $word, $arr))
{
return preg_replace('/('.$plural_word.')$/i', substr($arr[0],0,1).substr($singular_word,1), $word);
}
}
foreach ($singular as $rule => $replacement)
{
if (preg_match($rule, $word))
{
return preg_replace($rule, $replacement, $word);
}
}
return $word;
}
@Concept211
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Exactly what I was looking for.

Thank you!

@staabm
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staabm commented Oct 25, 2023

fwiw, based on the above script I worked out a few more cases and made it pass the doctrine/inflector EN test-suite

see

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