Chek if a phone numbers is valid, according to its syntax (should be: "+390523599314"). True if it's valid, False otherwise
function is_valid_phone( $phone ) { if ( $phone[0] != "+" ) { return false; } // end if else { $phone = substr( $phone, 1 ); // delete the "+" if ( !is_numeric( $phone ) ) { return false; } // end if } // end else return true; } // end function is_valid_phone
This way useful for create mixed arguments function. function foo() { $args = func_get_args(); print_r($args); } foo(1, 1256, 6, 17); //mixed ... -------------------Out-...
This function check if an url is valid or not. function is_valid_url($url) { return preg_match('|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i', $url); }...
If file exists then delete the file. function delFile( $file_name ) { if ( file_exists( $file_name ) ) // Does '$file_name' exist { unlink( $file_name ); return true; } ...
Escapes special characters in a string for use in an SQL statement. howewer it check get_magic_quotes_gpc function is enable or no. if true , it strips string from slashes and escaped string from spec...
