note 33854 added to language.variables.variable

From: Date: Wed, 09 Jul 2003 12:45:10 +0000
Subject: note 33854 added to language.variables.variable
Groups: php.notes 
Request: Send a blank email to php-notes+get-51774@lists.php.net to get a copy of this message
I found a nice application to variable variables to be dynamic forms. Say that you have a form for entering information about persons, but don't know in advance for how many persons your users want to enter information. Just provide an extra submit-button to add an extra entry in the form. The previously entered values from the form will be displayed again and an extra form entry will be provided. There is no limit to how many times the users can add entries. When finally hitting the submit button, all entries can be handled. <?php if ($submit=='submit'){ echo "Handle received data from form here"; } else{ //setting initial number of rows if (!isset($nr_entries)){ $nr_entries = 1; } //if user pushed "more entries", increment $nr_entries by one if ($submit=='More Entries'){ $nr_entries++; } echo" <FORM METHOD='post'>\n <INPUT TYPE='hidden' NAME='nr_entries' VALUE='$nr_entries'>\n "; for ($i=1; $i<=$nr_entries; $i++){ $temp = "name_$i"; $value = $$temp; // Here is how i reference entered values echo "<INPUT TYPE='text' name='name_$i' value='$value'><br>\n"; } echo" <INPUT TYPE='submit' NAME='submit' VALUE='More Entries'><br> <INPUT TYPE='submit' NAME='submit' VALUE='submit'> </FORM> "; } ?> ---- Manual Page -- http://www.php.net/manual/en/language.variables.variable.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+33854 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+33854&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+33854&report=yes

« previous php.notes (#51774) next »