Minichan

• Hot
• Topics
• Bumps
• Replies
• New topic
• History
• Watchlist
• Bulletins
• Events
• Folks
• Search
• Shuffle
• Stuff

Topic: Someone explain foreach loops.

Anonymous A started this discussion 15 years ago #6,990

r04r joined in and replied with this 15 years ago, 1 hour later[^] [v] #122,431

protip !!pMmAiEwOm joined in and replied with this 15 years ago, 34 minutes later, 1 hour after the original post[^] [v] #122,475

for each (collection of stuff) as (symbol that will contain one item) {

do something

}

Anonymous D joined in and replied with this 15 years ago, 5 minutes later, 1 hour after the original post[^] [v] #122,481

For loops and foreach loops don't actually have anything to do with each other

$ages = array(1, 2, 9, 102, 12, 3);

Based on this shitty array, the foreach loop is going to execute 6 times - using each element of the array.

Now the actual motherfucking loop:

foreach($ages as $age) {

echo $age . ", ";

}

That's going to take the array $ages we created, and all of the elements are going to be asigned the value $age. We haven't defined $age anywhere yet; $age is a temporary variable that the loop is going to use for each element in the array.

At the start, $age is going to be equal to 1, and it will output 1 with a comma on it, and so on all the way through the array.

It's useful when you want to traverse an array, if you want to do something to every element in an array, like if you had a big list of things and you wanted to сheck whether a thing has сertain properties, etc. Or maybe there's some extra whitespaсe you want to remove.

Is that what you wanted to know? :')

(Edited 2 minutes later.)

r04r replied with this 15 years ago, 4 minutes later, 1 hour after the original post[^] [v] #122,485

Anonymous D replied with this 15 years ago, 1 minute later, 1 hour after the original post[^] [v] #122,486

protip !!pMmAiEwOm replied with this 15 years ago, 1 minute later, 1 hour after the original post[^] [v] #122,487

Anonymous D replied with this 15 years ago, 55 seconds later, 1 hour after the original post[^] [v] #122,488

r04r replied with this 15 years ago, 1 minute later, 1 hour after the original post[^] [v] #122,490

Anonymous A (OP) replied with this 15 years ago, 5 minutes later, 1 hour after the original post[^] [v] #122,494

Anonymous A (OP) double-posted this 15 years ago, 33 seconds later, 1 hour after the original post[^] [v] #122,495

Anonymous E joined in and replied with this 15 years ago, 6 minutes later, 2 hours after the original post[^] [v] #122,510

@previous (A)
> implying that's david cameron

Anonymous A (OP) replied with this 15 years ago, 44 seconds later, 2 hours after the original post[^] [v] #122,512

TTEH replied with this 15 years ago, 46 seconds later, 2 hours after the original post[^] [v] #122,513

@previous (A)
All you had to do was copy and paste. :(

$ages = array(1, 2, 9, 102, 12, 3);

foreach($ages as $age) {

echo $age . ", ";

}

Put the array's values in parentheses btw.

(Edited 2 minutes later.)

TTEH double-posted this 15 years ago, 1 minute later, 2 hours after the original post[^] [v] #122,514

Anonymous A (OP) replied with this 15 years ago, 2 minutes later, 2 hours after the original post[^] [v] #122,518

Anonymous A (OP) double-posted this 15 years ago, 3 days later, 3 days after the original post[^] [v] #126,893

function something($var1, var2) {

$sum = $var1 + $var2;

return $sum;

return $sum

Killer Lettuce !!iNo3FkiZx joined in and replied with this 15 years ago, 56 seconds later, 3 days after the original post[^] [v] #126,894

Anonymous G joined in and replied with this 15 years ago, 18 minutes later, 3 days after the original post[^] [v] #126,904

derp = something(1,2)

Anonymous A (OP) replied with this 15 years ago, 9 minutes later, 3 days after the original post[^] [v] #126,914

• Topic locked.[Top]