Check if table exists in database 说明 public mysql_xdevapi\Table::existsInDatabase ( void ) : bool Verifies if this table exists in the database. 参数 此函数没有参数。返回值 Returns TRUE if table exists in the database, else FALSE if it does not. ...
*/ $filename = $options['file']; $conn = open_db_connection($options); $table_exists = check_table_exists($conn, $options); if (!$table_exists) { echo " Warning! Table does not exist "; } if (($handle = fopen($filename, "r")) !== FALSE) { while (($data = fgetcsv($...
if ($paramsIndexKey !== null && array_key_exists($paramsIndexKey, $row)) { $keySet = true; $key = (string)$row[$paramsIndexKey]; } if ($paramsColumnKey === null) { $valueSet = true; $value = $row; } elseif (is_array($row) && array_key_exists($paramsColumnKey, $row...
$default : null;}} else {$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, $data) :...
Migrated: 2016_04_09_134106_create_tasks_table 注意:由于laravel自带了users和password_resets两个migration,所以我们执行php artisan migrate时有了3个表被创建 5. 创建view并在blade模版视图resources.tasks.index中引用模型数据 @foreach($tasksas$task)<li> ...
un.php存在file_exists(),并且存在__destruct() <?php$filename=@$_GET['filename'];echo'please input a filename'.'<br />';classAnyClass{var$output='echo "ok";';function__destruct(){eval($this->output);}}if(file_exists($filename)){$a=newAnyClass();}else{echo'file is not exists...
$zip->close(); //check to make sure the file exists return file_exists($destination); } else { return false; } } 语法: <?php $files=array('file1.jpg', 'file2.jpg', 'file3.gif'); create_zip($files, 'myzipfile.zip', true); ?> 16. 解压文件 function unzip($location,$new...
*/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) ...
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:...
exists Description: Verify if the specified key exists. Parameters key Return value long: The number of keys tested that do exist. Examples $redis->set('key', 'value'); $redis->exists('key'); /* 1 */ $redis->exists('NonExistingKey'); /* 0 */ $redis->mset(['foo' => 'foo'...