I have an array that gets processed through a foreach loop.
foreach($images as $imageChoices) {
Do stuff here
}
How do I limit the loop to only process the first 4 items in the array?
5 Answers
The array_slice() function can be used.
foreach(array_slice($images, 0, 4) as $imageChoices) { … }
This enables you to only loop over the values that you want, without keeping count of how many you have done so far.
You basically count each iteration with the $i and stop the loop with break when 4 is reached...
$i = 0;
foreach($images as $imageChoices) {
//Do stuff here
$i++;
if($i >= 4 { break; }
}
Comments
You can do:
for($i=0; $i<count($images) && $i<4; $i++) {
// Use $images[$i]
}
Comments
Use a counter variable and increase it's count on each loop.
Apply check according to counter value
something like below:
$count=1;
foreach($images as $imageChoices) {
if($count <=4)
{
Do stuff here
}
else
{
Jump outside of loop break;
}
$count++;
}
OR you can do same with for loop instead of foreach and also with some inbuilt PHP Array functions
for($i=0; $i<4; $i++) {
// Use $images[$i]
}
1 Comment
symcbean
the for($i=0; $i<4; $i++) {} method pre-supposes that the array elements are numbered 0,1,2,3...
function process()
{
//Some stuff
}
process(current($imageChoices));
process(next($imageChoices));
process(next($imageChoices));
process(next($imageChoices));
foreach, usefor.For-Each, can you see it there? No limitation, runs for each item in arrayfor(when incrementing an integer for the keys) only works with$i-based, incrementally increasing array keys. The OP doesn't specify whether that's the case or not.