PHP while loop add by 2

Question

Currently I have a code that looks like:

for ($i=0; $i<=($num_newlines - 1); $i++) 
{
$tweetcpitems->post('statuses/update', 
                    array('status' => wordFilter("The item $parts[$i]  has been released on Club Penguin. View it here:   http://clubpenguincheatsnow.com/tools/swfviewer/items.swf?id=$parts[$id]")));
sleep(90);
}

What I want to do make the "i++" part add by two and not one, but how do I do this? Please help!

You may want to spend a little time getting a basic understanding about how flow statements like for work (and PHP code in general). This is a pretty trivial question. — mellamokb
– mellamokb, Commented May 24, 2012 at 20:57
Yes, I understand that this question was pretty basic, but I wanted to make sure that I got it correct because I didn't want to end up with an infinite loop. Something like it happened to me before, and I don't want to risk another chance. I always have to ask the pros at SOF. :) — S17514
– S17514, Commented May 24, 2012 at 21:11

John Conde · Accepted Answer · 2012-05-24 20:54:21Z

37

for ($i=0; $i<=($num_newlines - 1); $i+=2) {

answered May 24, 2012 at 20:54

John Conde

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1 Comment

NappingRabbit Over a year ago

curious, why wouldnt you do for ($i=0; $i<$num_newlines ; $i+=2)

just eric · Accepted Answer · 2012-05-24 21:05:39Z

6

$i++ : increment by one

$i+=2 : increment by two

$i+=3 : increment by three

etc..

edited May 24, 2012 at 21:05

answered May 24, 2012 at 20:57

just eric

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Comments

Fellipe Sanches · Accepted Answer · 2022-06-07 17:14:42Z

0

For those who are looking to increment pair of numbers (like 1-2 to 3-4):

Solution one:

//initial values
$n_left = 1;
$n_right = 2;

for ($i = 1; $i <= 5; $i++) {
    
    print "\n" . $n_left . "-" . $n_right;   
    
    $n_left =+ $n_left+2;
    $n_right =+ $n_right+2; 
}
//result: 1-2 3-4 5-6 7-8 9-10

Solution two:

for ($y = 0; $y <= 9; $y+=2) {
    
    print "\n" . ($y+1) . "-" . ($y+2);  

}
//result: 1-2 3-4 5-6 7-8 9-10

edited Jun 7, 2022 at 17:14

answered Jun 7, 2022 at 16:21

Fellipe Sanches

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