45 lines
1.4 KiB
PHP
45 lines
1.4 KiB
PHP
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<?php
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/**
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* @version $Id$
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* @package utf8
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* @subpackage strings
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*/
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//---------------------------------------------------------------
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/**
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* UTF-8 aware alternative to ucwords
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* Uppercase the first character of each word in a string
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* Note: requires utf8_substr_replace and utf8_strtoupper
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* @param string
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* @return string with first char of each word uppercase
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* @see http://www.php.net/ucwords
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* @package utf8
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* @subpackage strings
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*/
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function utf8_ucwords($str) {
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// Note: [\x0c\x09\x0b\x0a\x0d\x20] matches;
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// form feeds, horizontal tabs, vertical tabs, linefeeds and carriage returns
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// This corresponds to the definition of a "word" defined at http://www.php.net/ucwords
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$pattern = '/(^|([\x0c\x09\x0b\x0a\x0d\x20]+))([^\x0c\x09\x0b\x0a\x0d\x20]{1})[^\x0c\x09\x0b\x0a\x0d\x20]*/u';
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return preg_replace_callback($pattern, 'utf8_ucwords_callback',$str);
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}
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//---------------------------------------------------------------
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/**
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* Callback function for preg_replace_callback call in utf8_ucwords
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* You don't need to call this yourself
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* @param array of matches corresponding to a single word
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* @return string with first char of the word in uppercase
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* @see utf8_ucwords
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* @see utf8_strtoupper
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* @package utf8
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* @subpackage strings
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*/
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function utf8_ucwords_callback($matches) {
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$leadingws = $matches[2];
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$ucfirst = utf8_strtoupper($matches[3]);
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$ucword = utf8_substr_replace(ltrim($matches[0]),$ucfirst,0,1);
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return $leadingws . $ucword;
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}
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