Cycle for not incrementing

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Hey i'm trying to do a for cycle for the number of rows from my query.

$query3="SELECT * FROM carrinho where utilizador = '$utilizador'";
$res1=mysqli_query($lig,$query3);
$num = mysqli_num_rows($res1);

for ($i = 0; $i < $num; $i++) {
$query5 = "SELECT * from carrinho where id_carrinho = '$i'";
$res3=mysqli_query($lig,$query5);
$num1=mysqli_num_rows($res3);

What I have tried:

I tried to echo the number of rows to be sure there are rows, it returns 2.

But when i try to echo $i it returns 0.

Posted 3-Jul-17 1:20am

sarkQ

Updated 3-Jul-17 2:35am

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CPallini · Accepted Answer · 2017-07-03T02:35:00

Solution 1

There's something wrong in your description of the problem. The loop cannot fail so badly. For instance, the following PHP code

PHP

for ($i=0; $i<10; $i++)
{
  $a = "value = '$i'";
  echo $a . "\n";
}

produces the output

value = '0'
value = '1'
value = '2'
value = '3'
value = '4'
value = '5'
value = '6'
value = '7'
value = '8'
value = '9'

Posted 3-Jul-17 2:35am

CPallini

Comments

sarkQ 3-Jul-17 9:42am

Hmm you're right i've managed to make it work, but my problem seems to be another thing completly different, thanks though!