How can one ensure that the template file exists before attempting to replace placeholders in PHP?

To ensure that the template file exists before attempting to replace placeholders in PHP, you can use the `file_exists()` function to check if the file exists. If the file exists, then you can proceed with replacing the placeholders in the template file. 

$template_file = 'template.html';

if (file_exists($template_file)) {
    // Read the contents of the template file
    $template_content = file_get_contents($template_file);

    // Replace placeholders in the template content
    $replaced_content = str_replace('{placeholder}', 'replacement', $template_content);

    // Output the replaced content
    echo $replaced_content;
} else {
    echo 'Template file does not exist';
}

Keywords

file_exists template file placeholders error handling validation

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