Re: PHP 4.0 Bug #6841 Updated: split, explode, strtok not parsing correctly

By simple we mean a single call to a single function with a given set of arguments that is not returning what you would expect. -Rasmus On 18 Oct 2000 swenson@heronetwork.com wrote: > ID: 6841 > User Update by: swenson@heronetwork.com > Status: Feedback > Bug Type: Scripting Engine problem > Description: split, explode, strtok not parsing correctly > > I already simplified it down and added a bunch of echo's so you can see the walk through. > > 1) Place the sample input into a file called 'mime.txt'. > 2) Place the php script into a file in the same directory. > 3) Open the example script. I put a simple call in it already. > > The events are pretty straight forward: > 1) Open a file > 2) Read a line into an array of tokens > 3) skip the first token (it is the mime type) > 4) check to see if the pased in arg matches any of the other tokens > 5) return the first token from a line with a matching string or default to > "application/binary" > > The extra comments in the script are for other regular expressions that SHOULD work but do not. > > Previous Comments: > --------------------------------------------------------------------------- > > [2000-10-18 06:09:44] stas@php.net > Could you please provide short example of any of these functions working wrong - as a short > isolated script, not as a part of complicated code? > > --------------------------------------------------------------------------- > > [2000-09-21 22:55:42] swenson@heronetwork.com > On current build I am trying to parse an external tab and > space separated file (mime types). All of the tokenizing functions appear to not be performing > the regex parsing correctly. All of these functions are performing very odd. Most interesting is > that the first item is not even getting into the arrays (or token lists). > > Example input: > # Simple mime file > text/html htm HTM html HTML shtml SHTML > text/plain java JAVA c C cc CC cpp CPP h H txt TXT > text/rtf rtf RTF > > Script: > <?php > $mimeFile="/tmp/mime.txt"; > > function get_mime_type ( $ext ) { > global $mimeFile; > if( !$ext || strlen(trim($ext)) == 0 ) { > return "application/binary"; > } > $fp = fopen ($mimeFile, "r"); > while(!feof($fp)) { > $next = fgetss($fp, 300); > $next = trim($next); > echo("<p>Line in: $next<br>"); > if( !$next ) continue; > // try it with [ts] or [:space:] or " " etc. > // it just has problems, same with split and strtok $mime = explode("[ > ]",$next); > if( substr($mime[0], 0, 1) == "#" ) continue; > $len = count($mime); > echo("Line has: $len tokens - "); > for( $x = 1 ; $x <= $len ; $x++ ) { > if( !$mime[$x] ) continue; > if( substr($mime[$x] ,0 , 1) == "#" ) break; > echo("$x - $mime[$x], "); > if( $ext == $mime[$x] ) return $mime[0]; > } > } > return "application/binary"; > } > echo("<br><H1>Mime type for .H is " . get_mime_type(".H") . > "</H1>"); > ?> > > Sample output: > Line in: # Simple mime file > Line in: > Line in: text/html htm HTM html HTML shtml SHTML > Line has: 6 tokens - 1 - HTM, 2 - html, 3 - HTML, 4 - shtml, 5 - SHTML, > Line in: text/plain java JAVA c C cc CC cpp CPP h H txt TXT > Line has: 12 tokens - 1 - JAVA, 2 - c, 3 - C, 4 - cc, 5 - CC, 6 - cpp, 7 - CPP, 8 - h, 9 - H, > 10 - txt, 11 - TXT, > Line in: text/rtf rtf RTF > Line has: 2 tokens - 1 - RTF, > Line in: > Mime type for .H is application/binary > > --------------------------------------------------------------------------- > > > Full Bug description available at: http://bugs.php.net/?id=6841 > > >