how can i declare a variable, that will contain part of another variable.

[Orionsbelter]

How can this be done for example look at the below code:

 

$=1;

for($=1; $<=5; $++){

$count$i="Count $i";

}

 

echo"$count1, $count2, $count3, $count4, $count5";

 

as you can see $count$i will create a php error.

[JAY6390]

$i = 1;
for ($i = 1; $i <= 5; $i++) {
    ${'count' . $i} = "Count $i";
}

echo "$count1, $count2, $count3, $count4, $count5";

[Orionsbelter]

Thank you

[Orionsbelter]

Could you please tell me what this is called?

[JAY6390]

http://php.net/manual/en/language.variables.variable.php

That said, you should look at arrays

http://php.net/manual/en/language.types.array.php

These are what smart programmers use

[Orionsbelter]

this is the actual code

<?php
for($i = 1; $i <= 6; $i++){
${'count'.$i} = mysql_query("SELECT `replies`, `id` FROM `topics` WHERE forumID='$i'");
${'numCount'.$i} = mysql_num_rows($count$i);
${'countTot'.$i} = 0;
while($row=mysql_fetch_array($count$i)){
	${'countTot'.$i}+=$row[0];
}
}
?>

 

and its coming up with Parse error: syntax error, unexpected T_VARIABLE in /home/www/golden8ball.co.uk/forums/index.php on line 3

[Alex]

${'numCount'.$i} = mysql_num_rows(${'count' . $i});

[Orionsbelter]

Oh i found the error now , thanks

[Orionsbelter]

http://php.net/manual/en/language.variables.variable.php

That said, you should look at arrays

http://php.net/manual/en/language.types.array.php

These are what smart programmers use

 

Why is it better for me to use the array() rather than for()??

 

 

[sasa]

try to change your SQL code to

SELECT forumID, SUM(`replies`) AS countTot, COUNT(`id`) AS numCount  FROM `topics` WHERE forumID<7 GROUP BY forumID

and reduce the number of queries from 6 to 1

[trq]

http://php.net/manual/en/language.variables.variable.php

That said, you should look at arrays

http://php.net/manual/en/language.types.array.php

These are what smart programmers use

 

Why is it better for me to use the array() rather than for()??

 

 

 

That makes little sense. One creates a data structure, the other is a control structure.