2024-10-10

web/category.php

@@ -0,0 +1,54 @@
+<?php
+////////////////////////////Common head
+	$cache_time=10;
+	$OJ_CACHE_SHARE=false;
+	require_once('./include/cache_start.php');
+        require_once('./include/db_info.inc.php');
+        require_once('./include/const.inc.php');
+	require_once('./include/curl.php');
+        require_once('./include/memcache.php');
+	require_once('./include/setlang.php');
+	$view_title= "Welcome To Online Judge";
+ $result=false;	
+///////////////////////////MAIN	
+	
+	$view_category="";
+	$sql=	"select distinct source "
+			."FROM `problem` where defunct='N' order by source "
+			."LIMIT 5000";
+	$result=mysql_query_cache($sql);//mysql_escape_string($sql));
+	$category=array();
+        foreach ($result as $row){
+		$cate=explode(" ",$row['source']);
+		foreach($cate as $cat){
+                        $cat=trim($cat);
+                        if(mb_ereg("^http",$cat)){
+                                $cat=get_domain($cat);
+                        }
+                        array_push($category,trim($cat));
+                }
+
+	}
+	$category=array_unique($category);
+	if (!$result){
+		$view_category= "<h3>No Category Now!</h3>";
+	}else{
+		$view_category.= "<div style='word-wrap:break-word;'>";
+		foreach ($category as $cat){
+			if(trim($cat)=="") continue;
+			$hash_num=hexdec(substr(md5($cat),0,7));
+			$label_theme=$color_theme[$hash_num%count($color_theme)];
+			if($label_theme=="") $label_theme="default";
+			$view_category.= "<a class='label label-$label_theme' style='display: inline-block; margin:5px ' href='problemset.php?search=".htmlentities(urlencode($cat),ENT_QUOTES,'utf-8')."'>".htmlentities($cat,ENT_QUOTES,'utf-8')."</a>&nbsp;";
+
+		}
+		
+		$view_category.= "</div>";
+	}
+
+/////////////////////////Template
+require("template/".$OJ_TEMPLATE."/category.php");
+/////////////////////////Common foot
+if(file_exists('./include/cache_end.php'))
+	require_once('./include/cache_end.php');
+?>