Inserting count and sum functions - php

Question

Here is what my code prints:
Even numbers: 2 4 6
Here is my PHP code:
$names = file('file.txt');
echo "Text: ";
foreach($names as $name)
{
echo $name . "</br>";
}
echo "Even numbers: ";
foreach ($names as $name) {
$name = count_chars( $name, 3);
for($i=0; $i<strlen($name);$i++) {
if (is_numeric($name[$i]) && $name[$i]%2==0)
{
echo $name[$i];
}
}
echo "<br>";
}
?>
Could someone tell me how should I count all of these values into the new line (I need to get an answer 3) and get those values sum (I need to get 12)? I know I have to use count and sum functions, i don't know exactly where. Thanks for any help. All the answer should look like this:
Even numbers: 2 4 6
Even numbers are: 3
Even numbers sum are: 2 + 4 + 6 = 12

Answer 1

I don't really understand what your question.
But I think array_sum is what you are looking for. (https://secure.php.net/manual/en/function.array-sum.php)
Below is my code for your reference:
$array = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
foreach($array as $key => $value) {
if (empty($value%2)) {
$even[] = $value;
} else {
$odd[] = $value;
}
}
echo 'Even numbers: '.implode(' ', $even).'<br>';
echo 'Odd numbers: '.implode(' ', $odd).'<br>';
echo 'Even numbers sum are: '.implode(' + ', $even).' = '.array_sum($even);

Answer 2

Try this :
$names = file('file.txt');
echo "Text: ";
foreach($names as $name)
{
echo $name . "</br>";
}
echo "Even numbers: ";
foreach ($names as $name) {
$count = 0
$evens = [];
$name = count_chars($name, 3);
for($i=0; $i<strlen($name);$i++) {
if (is_numeric($name[$i]) && $name[$i]%2==0)
{
$count++;
$evens[] = $name[$i];
echo $name[$i];
}
}
echo "<br>";
}
echo "Even numbers Are: " . $count;
$i=0;
foreach($evens as $e){
$i++;
if($i == count($evens)){
$evens_string .= $e . '=' ;
} else {
$evens_string .= $e . '+' ;
}
}
$even_string .= array_sum($evens);
echo "Even numbers sum are: " . $even_string;
Hope this gives you the idea! I have not tested the code.