Very easy and handy to use PHP email validation function and File type validation function/methods.
Email validation
<?php /** * Function for email validation * @param string $email * @return boolean */ function valid_email($email) { $result = true; if(!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$", $email)) { $result = false; } return $result; } ?>
Image File extension validation
<?php /** * Function for checking the image (by extension) * @param string $file_name * @return boolean */ function is_image_file($file_name) { $arr_img = explode('.',$file_name); $image_extension = end($arr_img); // array of all the allowed extensions $image_extensions_allowed =array('jpg','jpeg','png','gif','JPG','JPEG','PNG','GIF'); if(in_array($image_extension,$image_extensions_allowed)){ return true; }else{ return false; } } ?>
read out some more ready to use PHP validation functions/methods.
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