Detecting end of the line in file stored in string variable - php

Question

Here's the file I happen to analyze through php:
#include <stdio.h>
#include <stdlib.h>
#include "subdir/file.h"
#define STRUCT_PTR struct {int i;} *
// This function does nothing useful.
int func(int i, ...) {
return i + i;
}
/*
+ + + + + + Main. + + + + + + + + +
*/
int main(void) {
int i = 1;
char s[10] = "- - - -";
i++;
s[1] = 'b';
i += func(4);
STRUCT_PTR t = malloc(sizeof(*t));
if (!t) {
return EXIT_FAILURE;
}
t->i = 1 == 2 ? 3 : -5;
return EXIT_SUCCESS;
}
// zZ
After the last line-commentary there's end of file. Respectively, when I open it with and editor, there's not new empty line after that commentary.
I store the content of this file to variable, like this $var = file_get_contents(path-to-file.c).
Then I cycle it through:
for($i = 0; isset($fileContent[$i]); $i++)
And I count characters in commentaries, including "//", "/*", "*/", and I do also count end of the line character.
Expected result is 89 and I am still getting only 88. I am pretty sure that this is because I am unable to detect end of the line, when there's no new line following.
I test it like this if($fileContent[$i]==PHP_EOL), but I have also tried using different combos using \n, \r\n, etc.
Thank you for your help in advance!
EDIT:
More of my code
for($i = 0; isset($fileContent[$i]); $i++)
{
// ... some not so important conditions
if($fileContent[$i] == '/' && !$inComment && !$inBComment)
{
if($fileContent[$i+1] == '/')
{
$inComment = true;
$charCount += 2;
$skip = true;
continue;
}
}
if($inComment)
{
if($fileContent[$i] == PHP_EOL)
{
$charCount++;
$inComment = false;
}
else
{
$charCount++;
}
continue;
}

Answer 1

You don't need to loop over the contents of every line do this. This one liner should do it for you. Note that this is only valid for one line comments.
<?php
//load file into array
$fileContents = file('test.txt');
//init counter
$charCount = 0;
foreach ($fileContents as $fileContent)
{
//+count
$charCount += (strpos(trim($fileContent),'//') === 0 )?strlen($fileContent):0;
}
//print
echo $charCount;
?>