<?php
include ("db.php");
$result = mysql_query("SELECT ques_id FROM questionbank
order by ques_id limit 5 ");
while($obj=mysql_fetch_array($result))
{
$ad1[$obj['ques_id']]++;//Used an array and inserted the
database query results into it.
}
$rand_keys=array_rand($ad1,1); //Did a random array function
echo "First random id = ".$ad1[$rand_keys[0]];
echo "<br>Second random id = ".$ad1[$rand_keys[1]];
?>
<!--Its not working. Have any solution for this. -->
Answer / bibhu
The following is your program. you need some little bit
change on this program.
<?php
include ("db.php");
$result = mysql_query("SELECT ques_id FROM questionbank
order by ques_id limit 5 ");
while($obj=mysql_fetch_array($result))
{
$ad1[$obj['ques_id']]++;//
}
$rand_keys=array_rand($ad1,1); //Did a random array function
echo "First random id = ".$ad1[$rand_keys[0]];
echo "<br>Second random id = ".$ad1[$rand_keys[1]];
?>
Your Mistake
1. in while statement you add $ad1[$obj['ques_id']]++; which
is not assignment statement. It is a increment statement.
The correct answer is $ad1[$obj['ques_id']] = $obj['ques_id'];
2.in array random function You use 1 key but you display random
array value using 2 keys.
$rand_keys=array_rand($ad1,1); //Did a random array function
echo "First random id = ".$ad1[$rand_keys[0]];
echo "<br>Second random id = ".$ad1[$rand_keys[1]];
just change 1 to 2 in array_rand($ad1,2);
The Changes are from while statement.
while($obj=mysql_fetch_array($select))
{
$ad1[$obj['ques_id']] = $obj['ques_id'];
}
$rand_keys=array_rand($ad1,2); //Did a random array function
echo "First random id = ".$ad1[$rand_keys[0]];
echo "<br>Second random id = ".$ad1[$rand_keys[1]];
Is This Answer Correct ? | 8 Yes | 0 No |
What is PHP's configuration file called?
What beforeFilter() is used?
How to remove leading and trailing spaces from user input values in php?
What is the difference between apache and tomcat?
What is difference between core php and framework?
What is the difference between super () and this ()?
What is encapsulation in php?
write the function to fetch a image from mysql databases (datatype blob).
What is the function to count elements in an array in PHP?
Here in this site i could not find the details for php ZEND certifications or i think u did not post any ? so i need the information about the php certification how to prepare and some of the mock exams?
explain the changes in php version
what is the scope of php in the future if any other language is developed then may be php is loss ???