PHP/MySQL Database/Query Result — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
Admin (обсуждение | вклад) м (1 версия) |
(нет различий)
|
Текущая версия на 07:06, 26 мая 2010
Содержание
- 1 From result row get the table name
- 2 Get column alias
- 3 Get returned row count
- 4 Store query result in an array
- 5 Store query result in an associate array
- 6 Store query result in an Object
- 7 use Column name in select statement as the variable name
- 8 Use for loop to read all query result
- 9 Use mysql_result function to get query result
From result row get the table name
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT id as Employee_ID FROM Employee";
$result = mysql_query($query);
$row = mysql_fetch_row($result);
echo mysql_field_table($result, 0);
?>
Get column alias
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT FirstName as First_Name FROM Employee";
$result = mysql_query($query);
$row = mysql_fetch_row($result);
echo mysql_field_name($result, 0);
?>
Get returned row count
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT * FROM Employee";
$result = mysql_query($query);
echo "There are ".mysql_num_rows($result)." Employee(s).";
?>
Store query result in an array
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT * FROM Employee";
$result = mysql_query($query);
while ($row = mysql_fetch_array($result,MYSQL_NUM)) {
$name = $row[1];
$developerid = $row[0];
echo "Product: $name ($developerid) <br />";
}
?>
Store query result in an associate array
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT id, firstname FROM Employee";
$result = mysql_query($query);
while ($row = mysql_fetch_array($result,MYSQL_ASSOC)) {
$name = $row["name"];
$developerid = $row["id"];
echo "Product: $name ($id) <br />";
}
?>
Store query result in an Object
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT id, firstName FROM Employee";
$result = mysql_query($query);
while ($row = mysql_fetch_object($result)) {
$name = $row->firstName;
$id = $row->id;
echo "Product: $name ($id) <br />";
}
?>
use Column name in select statement as the variable name
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT id, firstname FROM Employee";
$result = mysql_query($query);
while (list($id, $name) = mysql_fetch_row($result)) {
echo "$name ($id) <br />";
}
?>
Use for loop to read all query result
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT id, firstname FROM Employee";
$result = mysql_query($query);
for ($count=0; $count <= mysql_numrows($result); $count++) {
$id = mysql_result($result, $count, "id");
$name = mysql_result($result, $count, "firstname");
echo "$firstname ($id) <br />";
}
?>
Use mysql_result function to get query result
<?php
mysql_connect("mysql153.secureserver.net","wbex","password");
mysql_select_db("wbex");
$query = "SELECT id, firstname FROM Employee";
$result = mysql_query($query);
$id = mysql_result($result, 0, "id");
$name = mysql_result($result, 0, "firstname");
echo "The first returned id is $id and the name is $name";
?>