list-images.php

<?php
$d = 'path/to/images/';
foreach(glob($d.'*.{jpg,JPG,jpeg,JPEG,png,PNG}',GLOB_BRACE) as $file){
    $imag[] =  basename($file);
}

test email.php

<? 
$to      = 'test@test.com'; 
$subject = 'The test for php mail function'; 
$message = 'Hello'; 
$headers = 'From: test@test.com' . "\r\n" . 
    'Reply-To: test@test.com' . "\r\n" . 
    'X-Mailer: PHP/' . phpversion(); 
$success = mail($to, $subject, $message, $headers); 

if ( isset( $success ) )
	echo 'E-mail sent to: ' . $to . '<br /> Successful mail?: <strong ' . ( $success ? 'style="color:green;">YES' : 'style="color:red;">NO' ) . '</strong>';
	  
?>   

Truncate text by word.php

<?php
function texto($text, $limit=8) {
      if (str_word_count($text, 0) > $limit) {
          $words = str_word_count($text, 2);
          $pos = array_keys($words);
          $text = substr($text, 0, $pos[$limit]) . '...';
      }
      return $text;
    }