PHP计算for循环中if条件语句的值

Question

I have a PHP code to see if one or many pictures exist. If the picture exist I could like to count them and echo the answer. This is my code:

<?php
//Start Pictures section - dictates that if there are pictures this section is shown - if not this section is now shown.
for ($x=1; $x<=21; $x++)  {
    if($x<=9) {
        $picValue = 'picture0'.$x;
    }
    else {
        $picValue = 'picture' . $x;
    }

    $imageURLpixel = ABSOLUTE_URL_IMG.$code.'/pixel/'. $picValue .'.jpg';

    //Check if the image exists or not
    $pictureCount = 1;
    if (@fopen($imageURLpixel,'r')) {
    $pictureCount++;    
    $pictureCounter = count($pictureCount);
    }

 echo $pictureCounter;

} 

?>

I have 3 pictures in my exampe and it is being output as 111111111111111111111 - I would the output to be as 3. I am not getting any errors in my error log.

Answer 1

Just to make it clear. The solutions are until this one are all fixing "some issues" with the code, but not all together.

Here is my approach to make it clear, understandable and readable - maybe some learning curve etc.

$baseUrl = ABSOLUTE_URL_IMG.$code.'/pixel/';
$pictureCount = 0;

// for the first 20 pictues
for ($x=0; $x<21; $x++)  {
      // make it more readable and practical - see "sprintf"-documentation.
      $filename = sprintf('picture%02d.jpg', $x+1); // < is "one-based index"

      $fileUrl = $baseUrl . $filename;

      // if url exists, increase counter;
      if (@fopen($fileUrl,'r')) 
            $pictureCount++;

 }
 // total count of existing images.
 echo $pictureCount;