counting strings in foreach

Hello,
I have a string that divide it into pieces with a comma.
Each piece divide it into smaller interval with.
You have to count how many pieces with interval there are in every piece with comma below.

$string = "1str 1str, 2str 2str, 3str 3str";
$keywords = explode(',', $string);
foreach ($keywords as $v) {
    $parts = explode(' ', $v);
    echo count($parts) . "<br>";
}

Code (markup):

Outputs the 2 3 3, not what it expect 2 2 2
Where is the problem?
Why counting does not work properly?
Thanks!

 

The problem is the 2nd time your telling it to split where there is a space. And you have a space before and after the words for the 2nd and 3rd set. try this and see.

$string = "1str 1str,2str 2str,3str 3str";
$keywords = explode(',', $string);
foreach ($keywords as $v) {
    $parts = explode(' ', $v);
    echo count($parts) . "<br>";
   
}

PHP:

 

This will work:

<?php
$string = "1str 1str, 2str 2str, 3str 3str";
$keywords = explode(',', $string);
foreach ($keywords as $v) {
  $parts = explode(' ', ltrim($v));
  echo count($parts) . "<br>";
}

?>

Code (markup):

without changing the source

 

PHP - There is a function for everything. I pointed out why you were getting the wrong count but PopSiCLe gave you the solution that you want to use.

 

So perhaps even take it one step further ?

$string = "1str 1str , 2str 2str , 3str 3str ";
$keywords = explode(',', $string);
foreach ($keywords as $v) {
  $parts = explode(' ', rtrim(ltrim($v)));

echo count($parts) . "<br>";
}

PHP:

 

Without having to worry about extra spaces/variables:

foreach (explode(',', "1str 1str , 2str 2str , 3str 3str ") as $v) {
    echo str_word_count($v);
}

PHP:

 

Would you look at that Didn't even know that function existed.

 

The joke I've made for quite some time:

PHP, yeah... there's a function for that.

@KangBroke, I'm kind of laughing at the use of rtrim around ltrim... when there's just plain trim that does both ends at once!
http://php.net/manual/en/function.trim.php

 

Use this for count all,

$string = "1str 1str, 2str 2str, 3str 3str";
$keywords = explode(',', $string);
foreach ($keywords as $v) {
$parts = explode(' ', $v);
$count+=count($parts);
}
echo $count;

PHP: