Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
311 views
in Technique[技术] by (71.8m points)

php - Difference between mysql_fetch_array and mysql_fetch_row?

This is a simple question for PHP users. The reason I couldn't get the the exact difference between mysql_fetch_array() and mysql_fetch_row() in PHP is that I had been working much with Java.


Before I post this question here, I got some answers from Google but I found they're somewhat confusing. Some of the links I found on the internet are as follows.

Answer 1

Answer 2

Answer 3

Answer 4


I couldn't get the exact idea from the above answers. So actually what is the exact difference between them?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Many of the php programming newbies get confused about mysql_fetch_array(), mysql_fetch_row(), mysql_fetch_assoc() and mysql_fetch_object() functions, but all of these functions performs a similar process.

Let us create a table “tb” for clear example with three fields “id”, “username” and “password”

Table: tb

Insert a new row into the table with values 1 for id, tobby for username and tobby78$2 for password

enter image description here

db.php

<?php
$query=mysql_connect("localhost","root","");
mysql_select_db("tobby",$query);
?>

mysql_fetch_row()

Fetch a result row as an numeric array

<html>
<?php
include('db.php');
$query=mysql_query("select * from tb");
$row=mysql_fetch_row($query);
echo $row[0];
echo $row[1];
echo $row[2];
?>
</html>

Result

1 tobby tobby78$2

mysql_fetch_object()

Fetch a result row as an object

<html>
<?php
include('db.php');
$query=mysql_query("select * from tb");
$row=mysql_fetch_object($query);
echo $row->id;
echo $row->username;
echo $row->password;
?>
</html>

Result

1 tobby tobby78$2

mysql_fetch_assoc()

Fetch a result row as an associative array

<html>
<?php
include('db.php');
$query=mysql_query("select * from tb");
$row=mysql_fetch_assoc($query);
echo $row['id'];
echo $row['username'];
echo $row['password'];
?>
</html> 

Result

1 tobby tobby78$2

mysql_fetch_array()

Fetch a result row as an associative array, a numeric array and also it fetches by both associative & numeric array.

<html>
<?php
include('db.php');
$query=mysql_query("select * from tb");
$row=mysql_fetch_array($query);
echo $row['id'];
echo $row['username'];
echo $row['password'];

<span style="color: #993300;">/* here both associative array and numeric array will work. */</span>

echo $row[0];
echo $row[1];
echo $row[2];

?>
</html>

Result

1 tobby tobby78$2


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...