php数据库返回值有关问题-PHP Tutorial-php.cn

php数据库返回值有关问题

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Release： 2016-06-13 11:44:49

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php数据库返回值问题
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<html><br />	<body><br />	<?php<br />		$con = mysql_connect("127.0.0.1","root","root");<br />		if(!con){<br />			die('Could not connect:'.mysql_error());<br />		}else{<br />			mysql_select_db("test",$con);<br />			$result = mysql_query("select * from user");<br />			echo "<table border='1'>";<br />				while($row = mysql_fetch_array($result)){<br />					echo "<tr>";<br />						echo "<td>" . count($row) . "</td>";<br />						echo "<td>" . $row[0] . "</td>";<br />						echo "<td>" . $row[1] . "</td>";<br />						echo "<td>" . $row[2] . "</td>";<br />					echo "</tr>";<br />				}<br />			echo "</table>";<br />			mysql_close($con);<br />		}<br />	?><br />	</body><br /></html>

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我的数据库中就只有id，username，pwd3个字段为什么
echo "" . count($row) . "";统计的count($row)的长度为6啊

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