PHP CSV导入数据库

<?php$db_name="wordpress";//如需更改数据库配置在此更改即可$conn = mysql_connect("localhost", "root", "root");mysql_select_db($db_name, $conn);mysql_query("set names 'UTF-8'");//解析csv文件，返回二维数组，第一维是一共有多少行csv数据，第二维是键名为csv列名，值为当前行当前列的csv数据值function input_csv($csv_file) {    $result_arr = array ();    $i = 0;    while ($data_line = fgetcsv($csv_file, 10000)) {        if($i == 0){            $GLOBALS['csv_key_name_arr'] = $data_line;            $i++;            continue;        }        foreach($GLOBALS['csv_key_name_arr'] as $csv_key_num=>$csv_key_name){            $result_arr[$i][$csv_key_name] = $data_line[$csv_key_num];        }        $i++;    }    return $result_arr;}?><script type="text/javascript" src="jquery-1.8.2.js"></script>

<form action="doDaoRu2.php" method="post" enctype="multipart/form-data">    <input type="file" name="csv_file" size="50" maxlength="100000" /><br/>    <input type="submit" value="submit"/></form>

<?phpinclude_once("duDaoRuConfig.php");$dir = "./upload/";if (is_dir($dir) == false) {    mkdir($dir, 0777);//在页面目录下要新建upload文件夹用来保存上传csv文件}//1，存储csv文件$csv_filename = $_FILES["csv_file"]["name"];move_uploaded_file($_FILES["csv_file"]["tmp_name"], "./upload/" . $_FILES["csv_file"]["name"]);//2，获取所有表名$selAllTableName_str = "SELECT table_name FROM INFORMATION_SCHEMA.TABLES WHERE table_schema = '$db_name'";$allTableName_que = mysql_query($selAllTableName_str);//3，获取csv文件数据的所有列名$csv_key_name_arr = array();//4，以csv列名为键名获取csv所有数据$csv_file = fopen('upload/'.$csv_filename, 'r');$result_arr = input_csv($csv_file);fclose($csv_file);?><form action="doDaoRu3.php" method="post">    列名:    <select class="table_name_sel" name="table_name_sel">        <option> </option>        <?php        while($tableName_row = mysql_fetch_array($allTableName_que)){//可选择所有表名        ?>        <option><?php echo $tableName_row['table_name']?></option>        <?php        }        ?>    </select>    <br/>    <br/>    <br/>    <?php    foreach($csv_key_name_arr as $csv_key_name)//罗列csv所有列名，并选择要导入到的对应表名，或不导入该csv列    {    ?>    <span>        <input type="hidden" name="<?php echo $csv_key_name;?>" class="csv_key_name_hid" value=""/><?php echo $csv_key_name;?>        <select class='table_column_name_sel'>            <option> </option>        </select>    </span>    <?php    }    ?>    <input type="hidden" name="csv_filename_hid" value="<?php echo $csv_filename;?>"/>    <input type="submit" value="submit"/></form><script type="text/javascript">$(".table_column_name_sel").change(function(){//当为csv列名选择对应表列名时，为该csv隐藏域值赋选择的表列名    $(this).parent().find("input").val($(this).val());})$(".table_name_sel").change(function(){    $(".csv_key_name_hid").val("");    var tableName = $(this).val();    var ajaxAddUrl = "doDaoRuAjax.php";    //window.location = ajaxAddUrl+"?tableName="+tableName;    $.post(ajaxAddUrl,{'tableName':tableName},function(jieShou){        $(".table_column_name_sel option").remove();        $(".table_column_name_sel").append("<option> </option>");        $.each(jieShou,function(i,n){            $(".table_column_name_sel").append("<option>"+n+"</option>");        })    },"json");});</script>

<?phpinclude_once("duDaoRuConfig.php");$csv_filename = $_POST['csv_filename_hid'];$tableName = $_POST['table_name_sel'];//保存需要保存的csv数据的列与表列的关联$table_real_column_name_arr = array();//3，保存csv文件数据的所有列名$csv_key_name_arr = array();//获取csv所有列名及解析数据$csv_file = fopen('upload/'.$csv_filename, 'r');$result_arr = input_csv($csv_file);//csv数据条数（已扣除第一行列名）$result_arr_len = count($result_arr);//将需要保存的csv列与表的列关联起来foreach($csv_key_name_arr as $csv_key_name){    if($_POST[$csv_key_name]){//判断前页该csv列已赋表列名        $table_real_column_name_arr[$csv_key_name] = $_POST[$csv_key_name];    }}//使用批插入，拼凑所有需插入的数据到一个长字符串的sql语句中$all_insert_data_value_str = "";for ($i = 1; $i <= $result_arr_len; $i++) { //循环获取各字段值    $csv_line_data_value = "";    $j = 1;    foreach($table_real_column_name_arr as $csv_real_key_name=>$table_real_column_name){        if($j == count($table_real_column_name_arr)){            $csv_line_data_value .= " ' ".$result_arr[$i][$csv_real_key_name]."' ";        }else{            $csv_line_data_value .= " '".$result_arr[$i][$csv_real_key_name]."', ";        }        $j++;    }    $all_insert_data_value_str .= " ($csv_line_data_value) ,";}$all_insert_data_value_str = substr($all_insert_data_value_str,0,-1); //去掉最后一个逗号//拼凑所有需插入值的字段名到一个长字符串的sql语句中$all_insert_column_name_str = "";$i = 1;foreach($table_real_column_name_arr as $csv_real_key_name=>$table_real_column_name){    if($i == count($table_real_column_name_arr)){        $all_insert_column_name_str .= " $table_real_column_name ";    }else{        $all_insert_column_name_str .= " $table_real_column_name , ";    }    $i++;}//问题，1文本中如有回车换行会导致字符串中有转义字符导入失败，2中文乱码//执行批插入，csv导入完成$query = mysql_query("insert into $tableName ($all_insert_column_name_str) values $all_insert_data_value_str");//批量插入数据表中fclose($csv_file);if($query){    echo '导入成功！';}else{    echo '导入失败！';}?>

<?phpinclude_once("duDaoRuConfig.php");$talbeName = $_POST['tableName'];//查询该表所有列$selAllColumns_str = "SHOW COLUMNS FROM $talbeName";$allColumnsName_que = mysql_query($selAllColumns_str);$allColumnsName_arr = array();$i = 0;while($allColumnsName_row = mysql_fetch_array($allColumnsName_que)){    $allColumnsName_arr[$i] = $allColumnsName_row['Field'];    $i++;}ob_end_clean();echo json_encode($allColumnsName_arr);?>