JimInWOodstock Posted December 13, 2008 Share Posted December 13, 2008 I have been using PHP for years and consider myself fairly proficient. However, I am baffled by the following code. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> </head> <body> <?php /* this code tries to translate the "right" single quote and "left" single quote to regular quote. Same with the right and left double quotes. Change them to regular double quotes. */ $message = '‘single quoted string’ “double quoted string”'; $from = '‘’“”'; echo '<h4>'; echo 'from = ' . $from . '<br>'; echo 'from length = ' . strlen($from) . '<br>'; // length should be 4; displays 12 $from = '‘' . '’' . '“' . '”'; echo 'from = ' . $from . '<br>'; echo 'from length = ' . strlen($from) . '<br>'; // length should be 4; displays 12 $to = "'" . "'" . '"' . '"'; echo 'to = ' . $to . '<br>'; echo 'to length = ' . strlen($to) . '<br>'; // length shows 4; this is correct echo 'Original text = ' . $message . '<br>'; $message1 = strtr($message, $from, $to); echo 'Translated text = ' . $message1 . '<br>'; // translated text is not correct echo '</h4>' ?> </body> </html> Run this code and the output is not even close to what I want. Any help would be greatly appreciated. Link to comment https://forums.phpfreaks.com/topic/136852-problem-with-variable-and-strtr-function/ Share on other sites More sharing options...
sKunKbad Posted December 13, 2008 Share Posted December 13, 2008 preg_replace would change the characters easily. Is that all you want to do? $message = '‘single quoted string’ “double quoted string”'; $patterns[0] = '/(‘|’)/'; $patterns[1] = '/(“|”)/'; $replacements[0] = "'"; $replacements[1] = '"'; $message1 = preg_replace($patterns,$replacements,$message); echo 'Translated text = ' . $message1 . '<br>'; Link to comment https://forums.phpfreaks.com/topic/136852-problem-with-variable-and-strtr-function/#findComment-714733 Share on other sites More sharing options...
DarkWater Posted December 13, 2008 Share Posted December 13, 2008 How does mb_strlen() fare for you? I'm pretty sure that those "smart quotes" are not in ASCII characters (single byte, ordinal value 0x00-0xFF). Link to comment https://forums.phpfreaks.com/topic/136852-problem-with-variable-and-strtr-function/#findComment-714764 Share on other sites More sharing options...
JimInWOodstock Posted December 13, 2008 Author Share Posted December 13, 2008 The "smart quotes" are part of the ascii set. Their values are 0x91, 0x92, 0x93, and 0x94. The preg_replace code works great and I have added it into my actual code. However I find it interesting that the strlen is wrong and apparently, that causes the strtr to fail. If anyone knows why the strlen of the 4 chars shows as 12, I would be very interested. Link to comment https://forums.phpfreaks.com/topic/136852-problem-with-variable-and-strtr-function/#findComment-714789 Share on other sites More sharing options...
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