I'm using a foreach loop to echo out some values from my database, I need to strip the last comma from the last loop if that makes sense.
My loop is just simple, as below
foreach[$results as $result]{
echo $result->name.',';
}
Which echos out
result,result,result,result,
I just need to kill that pesky last comma.
mickmackusa
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asked Jan 16, 2011 at 14:15
0
Better:
$resultstr = array[];
foreach [$results as $result] {
$resultstr[] = $result->name;
}
echo implode[",",$resultstr];
answered Jan 16, 2011 at 14:23
LeleDumboLeleDumbo
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1. Concat to string but add | before
$s = '';
foreach [$results as $result] {
if [$s] $s .= '|';
$s .= $result->name;
}
echo $s;
2. Echo | only if not last item
$s = '';
$n = count[$results];
foreach [$results as $i => $result] {
$s .= $result->name;
if [[$i+1] != $n] $s .= '|';
}
echo $s;
3. Load to array and then implode
$s = array[];
foreach [$results as $result] {
$s[] = $result->name;
}
echo implode['|', $s];
4. Concat to string then cut last | [or rtrim it]
$s = '';
foreach [$results as $result] {
$s .= $result->name . '|';
}
echo substr[$s, 0, -1]; # or # echo rtrim[$s, '|'];
5. Concat string using array_map[]
echo implode['|', array_map[function[$result] { return $result->name; }, $results]];
answered Oct 26, 2014 at 13:03
GlavićGlavić
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1
$result_names = '';
foreach[$results as $result]{
$result_names .= $result->name.',';
}
echo rtrim[$result_names, ','];
answered Jan 16, 2011 at 14:17
MikeMike
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2
I've been having the same issue with this similar problem recently. I fixed it by using an increment variable $i, initializing it to 0, then having it increment inside the foreach loop. Within that loop place an if, else, with the echo statement including a comma if the $i counter is less than the sizeof[] operator of your array/variable.
I don't know if this would fix your issue per se, but it helped me with mine. I realize this question is years-old, but hopefully this will help someone else. I'm fairly new to PHP so I didn't quite understand a lot of the Answers that were given before me, though they were quite insightful, particularly the implode one.
$i=0;
foreach [$results as $result] {
$i++;
if[sizeof[$results] > $i] {
echo $result . ", ";
} else {
echo $result;
}
}
answered Jul 14, 2018 at 1:02
In modern PHP, array_column[] will allow you to isolate a column of data within an array of objects.
Code: [Demo]
$results = [
[object]['name' => 'A'],
[object]['name' => 'B'],
[object]['name' => 'C']
];
echo implode[',', array_column[$results, 'name']];
Output:
A,B,C
That said, since you are iterating a result set, then you may be better served by calling a CONCAT[]
function in your sql, so that the values are already joined in the single value result set.
If you are processing a collection in Laravel, you can pluck[] and implode[]:
$collection->pluck['name']->implode[',']
answered Sep 13, 2020 at 2:50
mickmackusamickmackusa
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$arraySize = count[$results];
for[$i=0; $iname;
}
Qiu
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answered Aug 18, 2015 at 19:01
1
Another smart way is:
foreach[$results as $result]{
echo [$passed ? ',' : ''] . $result->name;
$passed = true;
}
In this case at first loop $passed is NULL and , doesn't print.
answered Feb 24, 2018 at 16:30
Amir FoAmir Fo
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I know this is an old thread, but this came up recently and I thought I'd share my alternate, cleaner way of dealing with it, using next[].
$array = array["A thing", "A whatsit", "eighty flange oscillators"];
foreach[ $array as $value ]{
echo $value;
$nxt = next[$array];
if[$nxt] echo ", "; // commas between each item in the list
else echo ". And that's it."; // no comma after the last item.
}
// outputs:
// A thing, A whatsit, eighty flange oscillators. And that's it.
play with it here
answered Feb 15, 2021 at 16:57
1
I have to do this alot because I'm always trying to feed numbers in to jplot, I find its easier to put the comma in the front of the loop like so:
foreach[$arrayitem as $k]{ $string = $string.",".$k;
}
and then chop off the first character [the comma] using substr, it helps if you know a guestimate of long your string will be, I'm not sure what the limit on substr max character is.
echo substr[$a,1,10000000];
hope this helps.
answered May 13, 2012 at 15:44
$a[0] = 'John Doe';
$a[1] = 'Jason statham';
$a[2] = 'Thomas Anderson';
$size = count[$a];
foreach[$a as $key=>$name]{
$result .= $name;
if[$size > $key+1] $result .=', ';
}
echo $result;
kapa
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answered Sep 27, 2012 at 11:06
3
Pang
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answered Apr 24, 2017 at 9:49
shvmsngh99shvmsngh99
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answered Oct 5, 2018 at 10:38
heady12heady12
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This is what I normally do, add a comma before the item rather than after, while ignoring the first loop.
$i = 0;
$string = '';
foreach[$array as $item]{
$string .= [$i++ ? ',' : ''].$item;
}
answered Aug 26, 2020 at 11:19
lugreenlugreen
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First get all the output by using output buffering. Then, trim the comma and display it. So, do it like this:
ob_start[];
foreach[$results as $result]
{
echo $result->name.',';
}
$output = ob_get_clean[];
echo rtrim[$output, ','];
The output buffering method helps if the inside loop is very big [and OP is posting here just for brevity], then using OB is easier without changing the internals of the loop.
answered Jan 16, 2011 at 14:21
shamittomarshamittomar
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