What modifications can be made to the PHP script to accurately count only the lines starting with a specific character?

To accurately count only the lines starting with a specific character in a PHP script, you can modify the script to check each line for the desired character at the beginning and increment a counter accordingly. This can be achieved by using a loop to iterate through each line of the file and using a conditional statement to check if the line starts with the specified character.

<?php

$filename = "example.txt";
$specificCharacter = 'A';
$lineCount = 0;

$file = fopen($filename, "r");

if ($file) {
    while (($line = fgets($file)) !== false) {
        if (strpos(trim($line), $specificCharacter) === 0) {
            $lineCount++;
        }
    }

    fclose($file);
    
    echo "Number of lines starting with '$specificCharacter': $lineCount";
} else {
    echo "Error opening file.";
}
?>