mysql_fetch_row()
(PHP 4, PHP 5)
从结果集中取得一行作为枚举数组
说明
mysql_fetch_row(resource $result): array
返回根据所取得的行生成的数组,如果没有更多行则返回FALSE
。
mysql_fetch_row()从和指定的结果标识关联的结果集中取得一行数据并作为数组返回。每个结果的列储存在一个数组的单元中,偏移量从 0 开始。
依次调用mysql_fetch_row()将返回结果集中的下一行,如果没有更多行则返回FALSE
。
参见mysql_fetch_array(),mysql_fetch_assoc(),mysql_fetch_object(),mysql_data_seek(),mysql_fetch_lengths()和mysql_result()。
参数
- $result
resource型的结果集。此结果集来自对mysql_query()的调用。
返回值
Returns an numerical array of strings that corresponds to the fetched row, or FALSE
if there are no more rows.
mysql_fetch_row() fetches one row of data from the result associated with the specified result identifier. The row is returned as an array. Each result column is stored in an array offset, starting at offset 0.
范例
Example #1 Fetching one row with mysql_fetch_row()
<?php $result = mysql_query("SELECT id,email FROM people WHERE id = '42'"); if (!$result) { echo 'Could not run query: ' . mysql_error(); exit; } $row = mysql_fetch_row($result); echo $row[0]; // 42 echo $row[1]; // the email value ?>
注释
Note:此函数将 NULL 字段设置为 PHP
NULL
值。
参见
mysql_fetch_array()
从结果集中取得一行作为关联数组,或数字数组,或二者兼有mysql_fetch_assoc()
从结果集中取得一行作为关联数组mysql_fetch_object()
从结果集中取得一行作为对象mysql_data_seek()
移动内部结果的指针mysql_fetch_lengths()
取得结果集中每个输出的长度mysql_result()
取得结果数据
Maybe worth pointing out that all the fields returned by this (and other?) calls are returned with type string. This had me puzzled for quite some time.
to print an array, simply use print_r(array name) like this: $myrow = mysql_fetch_row($result); echo "<pre>"; print_r($myrow); echo "</pre>"; this will output the array in a readable form, with the index, too. Don't forget the 'pre' tags or the output will be on a single line.
sry :) note now fixed: <?php $esi=mysql_list_tables($db);$ris=mysql_fetch_row($esi); //example: $db has >= 1 tabs echo var_dump($ris); //echoes only array(1). solution: while($ris=mysql_fetch_row($esi)) echo $ris[0]; /*debug: $ris=array("1st_tab"); ... $ris=array("n_tab");$ris=false;*/ while ($ris[]=mysql_fetch_row($esi)); //debug:$ris=array(array("1st_tab"), ... array("n_tab")); echo $ris[n][0];//echo:"n_tab" echo $ris[0][n];//echo: array | null ?> hope it helps
<?php require 'prhlavicka.php'; pis_hlavicku('Vypis článků'); require_once 'db.php'; $kom = new server(); $sql=$kom->query("SELECT autor,nazev,obsah FROM `Clanky_Sadek`"); while ($data = mysql_fetch_row($sql)){ ECHO '<br />--AUTOR--<br />'.$data[0].'<br />__NÁZEV ČLÁNKU__<br />'.$data[1].'<br />..OBSAH ČLÁNKU..<br />'.$data[2]; } include 'Paticka.html'; ?>
The following function to read all data out of a mysql-resultset, is may be faster than Rafaels solution: <? function mysql_fetch_all($result) { while($row=mysql_fetch_array($result)) { $return[] = $row; } return $return; } ?>
The following are the basic codes to get a specific row from the mysql db into a $row variable: $query = "SELECT * FROM table"; $result = mysql_query($query); $row = mysql_fetch_row($result); And $row[0], $row[1] ... $row[n] are used to access those field values. Does anyone know how I can add a new field to $row, so that the field count increases from n to n+1? I have tried treating $row like an array, and tried array_push function, but didn't work. Thanks.
Creates table from all db info: <?php $qry = "SELECT * FROM exp_member_data"; $res = mysql_query($mem_qry); function mysql_fetch_all($res) { while($row=mysql_fetch_array($res)) { $return[] = $row; } return $return; } function create_table($dataArr) { echo "<tr>"; for($j = 0; $j < count($dataArr); $j++) { echo "<td>".$dataArr[$j]."</td>"; } echo "</tr>"; } $all = mysql_fetch_all($res); echo "<table class='data_table'>"; for($i = 0; $i < count($all); $i++) { create_table($all[$i]); } echo "</table>"; ?>
<?php $conn=mysql_connect("localhost","root",""); if($conn) { echo("Connection Successfully"); $seldb=mysql_select_db("test",$conn); if($seldb) { echo("Database selected successfully"); $retrive=mysql_query("select name,number from login1 where name='sateesh'",$conn); if($retrive) { echo("Successfully data retrived<br>"); $result=mysql_fetch_row($retrive); echo ("Name".$result[0]); echo ("Number".$result[1]); } else { echo "Table not inserted"; } } else { die("database not selected"); } } else { die("connection faild"); } mysql_close($conn); ?>