if($isOk){ echo ' 指定的表存在'; }else{ echo ' 指定的表不存在'; } function tableIsExists($tableName, $dbName, $host, $usrName, $pwd){ $IsExists = false; $conn = mysql_connect($host, $usrName, $pwd); $result = mysql_list_tables($dbName); for ($i = 0; $i < mysql_nu...
* @return void*/if( ! function_exists('is_really_writable')) { function is_really_writable($file){//If we're on a Unix server with safe_mode off we call is_writableif(DIRECTORY_SEPARATOR == "/"; AND @ini_get("safe_mode") ==FALSE){returnis_writable($file); }//For windows se...
Check if table exists:if ($db->tableExists ('users')) echo "hooray";mysqli_real_escape_string() wrapper:$escaped = $db->escape ("' and 1=1");Transaction helpersPlease keep in mind that transactions are working on innoDB tables. Rollback transaction if insert fails:...
check_if_table_exists() This assert was triggered when the server tried to load plugins while running in embedded server mode. In embedded server mode, check_if_table_exists() was used to check if mysql.plugin existed so that ER_NO_SUCH_TABLE could be silently ignored. The problem was ...
check_dir(dirname($back),true);copy($file,$back);$data=base64_decode($res['data']);//判断是否为数据库文件if(!file_put_contents($file,$data)){echo"文件 " .basename($v['path']) . " 更新失败!<br>"; }else{if(stripos($v['path'], '/db/') === 0 &&preg_match('/\.sql$...
if (isset($_POST[“submit”])) { $check = getimagesize($_FILES[“image”][“tmp_name”]); if ($check !== false) { echo “文件是一个有效的图片 –” . $check[“mime”] . “.”; $uploadOk = 1; } else { echo “文件不是一个有效的图片.”; ...
php include "connect.php"; $sno=$_GET['sno']; $sql="select*from`stud_info`wheresno='$sno'"; $result=mysqli_query($link,$sql);$num=mysqli_affected_rows($link); $row=mysqli_fetch_array($result); if($num>0){ $sname=$row['sname']; $ssex=$row['ssex']; $birth=$row['...
*/functionoffsetUnset($key){if(array_key_exists($key,get_object_vars($this))){unset($this->{$key});}}/** * Defined by ArrayAccess interface * Check value exists, given it"s key e.g. isset($A["title"]) * @param mixed key (string or integer) ...
以下示例展示了如何将文件信息保存在MySQL数据库中。需要在上传文件时,同时保存文件信息,比如文件名、大小、类型、上传时间等。 上传信息 <?php if(isset($_FILES['file'])){ $file_name = $_FILES['file']['name']; $file_size =$_FILES['file']['size']; $file_tmp =$_FILES['file']['tmp_...
$default : null;}} else {$filters = explode(',', $filters);}} elseif (is_int($filters)) {$filters = array($filters);}if (is_array($filters)) {foreach ($filters as $filter) {if (function_exists($filter)) {$data = is_array($data) ? array_map_recursive($filter, $data) :...