Online group chat with ipad-like interface

Web Online Group chat (ipad interface) source code all in Ichat.zip compressed package The main consists of three files: index.php: Form values get nickname file, pass value tochat.phpFile Chat . PHP : main file, get index.php value, determine whether to fill in the nickname, Empty is a visitor, this page contains chat input text box, submitted to this page processing, Save chat record in auto-created Chat.txt file, use IFRAME to call view.php to display chat content; View . PHP : Read the contents of the Chat.txt file by line, reverse output, automatically refresh every 20s interval To improve: ( I am a novice, is learning ) 1. Anti-refresh mechanism 2. Read the content should use Ajax Demo Address: http://qhbbs.tk/ /* Create a session to determine whether to fill in the nickname, no visitors */ Session_Start (); if (isset ($_session[' views ')) $_session[' views ']=$_session[' views ']+1; Else $_session[' views ']=1; if ($_session[' views ']==1) $_session[' username ']=$_post[' user ']; if (!$_session[' username ') $_session[' username ']= "tourists"; if ($_post[' user ') $_session[' username ']=$_post[' user ']; $user =$_session[' username ']; $words =$_post[' words '];//chat content Assignment if (empty ($words)) exit; Savechat ($words, $_session[' username ');//Save chat content /* The following is the Save Chat content function */ function Savechat ($msg, $user) { $date =date (' H:i:s ', Time ()); $DOCUMENT _root=$_server[' Document_root ']; if (! $fp =fopen ("$DOCUMENT _root/chat.txt", ' A + ')) { Die (' Create chat log file failed, please check if there is permission. '); } $msg = Htmlspecialchars ($msg); $msg = Preg_replace ('/([httpftp:\/\/]) * ([a-za-]) +\. ( [a-za-z0-9_-]) +\. ([a-za-z0-9_-]) + (a-za-z0-9_) */', ' \\0 ', $msg); $msg = Preg_replace ('/([a-za-z0-9_\.]) +@ ([a-za-z0-9-]) +\. ([a-za-z0-9-]{2,4}) +/', ' \\0 ', $msg); $msg = ' ['. $date. '] '. ' \ t ". $user.": ". $msg." \ n "; if (!fwrite ($FP, $msg)) { Die (' Write chat record failed. '); } Fclose ($FP); } ?> Copy Code $DOCUMENT _root=$_server[' Document_root ']; $FP =fopen ("$DOCUMENT _root/chat.txt", ' A + '); if (! $fp) { echo " Didn ' t write chat log in chat.txt.Please try say again. "; Exit } $handle = $fp; $temp _arr=array (); Do { $file =fgets ($handle, 1024); $temp _arr[]= $file; } while (!feof ($handle)); Fclose ($handle); Krsort ($temp _arr);//reverse order foreach ($temp _arr as $value) { echo "". $value. "". " "; } ?> Copy Code

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