📄 example_wall.php
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<? require("Sajax.php"); // // The world's least efficient wall implementation // function colorify_ip($ip) { $parts = explode(".", $ip); $color = sprintf("%02s", dechex($parts[1])) . sprintf("%02s", dechex($parts[2])) . sprintf("%02s", dechex($parts[3])); return $color; } function add_line($msg) { $f = fopen("/tmp/wall.html", "a"); $dt = date("Y-m-d h:i:s"); $msg = strip_tags(stripslashes($msg)); $remote = $_SERVER["REMOTE_ADDR"]; // generate unique-ish color for IP $color = colorify_ip($remote); fwrite($f, "<span style=\"color:#$color\">$dt</span> $msg<br>\n"); fclose($f); } function refresh() { $lines = file("/tmp/wall.html"); // return the last 25 lines return join("\n", array_slice($lines, -25)); } $sajax_request_type = "GET"; sajax_init(); sajax_export("add_line", "refresh"); sajax_handle_client_request(); ?><html><head> <title>Wall</title> <style> .date { color: blue; } </style> <script> <? sajax_show_javascript(); ?> var check_n = 0; function refresh_cb(new_data) { document.getElementById("wall").innerHTML = new_data; document.getElementById("status").innerHTML = "Checked #" + check_n++; setTimeout("refresh()", 1000); } function refresh() { document.getElementById("status").innerHTML = "Checking.."; x_refresh(refresh_cb); } function add_cb() { // we don't care.. } function add() { var line; var handle; handle = document.getElementById("handle").value; line = document.getElementById("line").value; if (line == "") return; x_add_line("[" + handle + "] " + line, add_cb); document.getElementById("line").value = ""; } </script> </head><body onload="refresh();"><form name="f" action="#" onsubmit="add();return false;"> <a href="http://www.modernmethod.com/sajax">Sajax</a> - This example illustrates the simplest possible graffiti wall. It isn't meant to be perfect, featureful, or even useful.<br/> <input type="text" name="handle" id="handle" value="(name)" onfocus="this.select()" style="width:130px;"> <input type="text" name="line" id="line" value="(enter your message here)" onfocus="this.select()" style="width:300px;"> <input type="button" name="check" value="Post message" onclick="add(); return false;"> <div id="wall"></div> <div id="status"><em>Loading..</em></div></form> </body></html>⌨️ 快捷键说明
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