Editing files in a <textarea> - DevShed Discussion Forums

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Editing files in a <textarea>

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Author	Topic: Editing files in a <textarea>
alexgreg Member	posted July 02, 2000 02:49 PM OK, I've written this program to let me edit ASCII files on my server in a <textarea>. However, if the file that is being edited contains a textarea within it, then I get problems... To cut a long story short, what I want to do is read this file into the textarea but I want to convert all of the < and > characters to < and > 's. I figgered you'd do this through Regular Expressions: however these are poorly documented in the PHP book I have, though the Perl book I have tells me how to do this. Could someone tell me how to do this, IN PHP! Thanks very much. -------------------------- Alex (http://www.alex-greg.co.uk) oh yeah, here's the code: code: <? include("top.txt"); ?> <form method=POST action="/old?u=http%3A%2F%2Fwww.devshed.com%2FTalk%2FForums%2FForum5%2FHTML%2Fsave_file.php3&y=1999"> <? print "$file"; ?><br> <? print '<textarea name="data" rows=18 cols=170 class=text>'; ?> <? if (file_exists("$file")) {readfile("$file");} ?> <? print "</textarea><br><br>"; print '<input type="hidden" name="file" value="<? print "$file"; ?>">'; print '<input type="submit" name="submit" value="Save Changes" class="text">'; print '</form>'; include("bottom.txt"); ?> The program gets send a variable by the calling form called "file".
polman Member	posted July 02, 2000 05:00 PM $file = eregi("<","<",$file); $file = eregi(">",">",$file); If you want a good place to look for info, www.php.net has a searchable list of all the functions and explains them fairly well.
alexgreg Member	posted July 03, 2000 03:47 PM Thanks, but whereabouts does the code go?
polman Member	posted July 03, 2000 05:17 PM Man, the 2nd "<" and the 2nd ">" should be the & lt; and the & gt; ... it just displayed it wrong. Anyway that should go after the readfile.
terium Member	posted July 04, 2000 01:10 PM Actually, what you want is htmlspecialchars(). This will change &, ", <, and > to HTML entities. So, if you have: $string = "<html></html>"; and do this: $string = htmlspecialchars($string); echo $string; you'll get this: <html></html> HTH
terium Member	posted July 04, 2000 01:19 PM Actually, what you want is htmlspecialchars(). This will change &, ", <, and > to HTML entities. So for every print() statement that you have with < or >, do this (not tested): print htmlspecialchars('<textarea or something>'); HTH

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