深入探讨PHP删除数据库表的具体方式_PHP教程

<ol class="dp-xml"><li class="alt"><span><span>function deldata($dbname,$tableflag){  </span></span></li><li><span>$</span><span class="attribute">db_host</span><span> = </span><span class="attribute-value">'localhost'</span><span>;  </span></li><li class="alt"><span>$</span><span class="attribute">db_port</span><span> = </span><span class="attribute-value">'3306'</span><span>;  </span></li><li><span>$</span><span class="attribute">db_user</span><span> = </span><span class="attribute-value">'user'</span><span>;  </span></li><li class="alt"><span>$</span><span class="attribute">db_pass</span><span> = </span><span class="attribute-value">'password'</span><span>;  </span></li><li><span>$</span><span class="attribute">connect</span><span> =</span><span class="attribute-value">mysql_connect</span><span>($db_host,$db_user,$db_pass);  </span></li><li class="alt"><span>mysql_select_db($dbname);  </span></li><li><span>$</span><span class="attribute">result</span><span> = </span><span class="attribute-value">mysql_query</span><span>("show table status from $dbname",$connect);  </span></li><li class="alt"><span>$</span><span class="attribute">data</span><span>=</span><span class="attribute-value">mysql_fetch_array</span><span>($result);  </span></li><li><span>while($</span><span class="attribute">data</span><span>=</span><span class="attribute-value">mysql_fetch_array</span><span>($result)) {  </span></li><li class="alt"><span>$</span><span class="attribute">table</span><span>=</span><span class="attribute-value">mysubstr</span><span>($data[Name],"_");  </span></li><li><span>if($</span><span class="attribute">table</span><span>==$tableflag){  </span></li><li class="alt"><span>//测试之用  </span></li><li><span>/*echo $data[Name];  </span></li><li class="alt"><span>        echo "  </span></li><li><span>";  </span></li><li class="alt"><span>        echo $table;  </span></li><li><span>        echo "  </span></li><li class="alt"><span>";*/  </span></li><li><span>mysql_query("drop table $data[Name]");  </span></li><li class="alt"><span>}  </span></li><li><span>}  </span></li><li class="alt"><span>return true;  </span></li><li><span>}  </span></li><li class="alt"><span>/*截取某个特定字符前的所有字符函数  </span></li><li><span>*$str 为待截取字符串  </span></li><li class="alt"><span>*$flag 特定字符如&ldquo;_&rdquo;  </span></li><li><span>*/  </span></li><li class="alt"><span>function mysubstr($str,$flag){  </span></li><li><span>$</span><span class="attribute">pos</span><span>=</span><span class="attribute-value">strpos</span><span>($str,$flag);  </span></li><li class="alt"><span>return substr($str,0,$pos);  </span></li><li><span>}  </span></li><li class="alt"><span class="tag">?></span><span> </span></li></ol>

<ol class="dp-xml"><li class="alt"><span><span>$</span><span class="attribute">dbname</span><span>=</span><span class="attribute-value">"shujukuming"</span><span>;//数据库名  </span></span></li><li><span>$</span><span class="attribute">tableflag</span><span>=</span><span class="attribute-value">"xx"</span><span>;//要删除的表的前缀，有这个前缀的表才删除，标志出是哪一个用户  </span></li><li class="alt"><span>deldata($dbname,$tableflag);  </span></li><li><span>//$</span><span class="attribute">test</span><span>=</span><span class="attribute-value">mysubstr</span><span>("cdb_account_log","_");  </span></li><li class="alt"><span>//echo $test;  </span></li><li><span class="tag">?></span><span> </span></li></ol>

<ol class="dp-xml"><li class="alt"><span><span>function deldata($dbname,$tableflag){  </span></span></li><li><span>$</span><span class="attribute">db_host</span><span> = </span><span class="attribute-value">'localhost'</span><span>;  </span></li><li class="alt"><span>$</span><span class="attribute">db_port</span><span> = </span><span class="attribute-value">'3306'</span><span>;  </span></li><li><span>$</span><span class="attribute">db_user</span><span> = </span><span class="attribute-value">'user'</span><span>;  </span></li><li class="alt"><span>$</span><span class="attribute">db_pass</span><span> = </span><span class="attribute-value">'password'</span><span>;  </span></li></ol>

<ol class="dp-xml"><li class="alt"><span><span>$</span><span class="attribute">dbname</span><span>=</span><span class="attribute-value">"shujukuming"</span><span>;//数据库名  </span></span></li><li><span>$</span><span class="attribute">tableflag</span><span>=</span><span class="attribute-value">"xx"</span><span>;//要删除的表的前缀，有这个前缀的表才删除，标志出是哪一个用户  </span></li><li class="alt"><span>deldata($dbname,$tableflag);  </span></li><li><span>//$</span><span class="attribute">test</span><span>=</span><span class="attribute-value">mysubstr</span><span>("cdb_account_log","_");  </span></li><li class="alt"><span>//echo $test;  </span></li><li><span class="tag">?></span><span> </span></li><li class="alt"><span> </span></li></ol>