My friend // ( 01234567891111111111222222222233 ) // ( 0123456789012345678901 ) // becomes : //
My friend
function replace_space( $string ) { //return $string; $return_string = ''; // $remaining is the rest of the string where to replace spaces characters $remaining = $string; // $start represents the position of the next '<' character // $end represents the position of the next '>' character $start = 0; $end = 0; $start = strpos ( $remaining, '<' ); // -> 0 $end = strpos ( $remaining, '>' ); // -> 16 // as long as a '<' and his friend '>' are found, we loop while ( is_numeric( $start ) and is_numeric( $end ) ) { // $treatment is the part of the string to treat // In the first loop of our example, this variable is empty, but in the // second loop, it equals 'My friend' $treatment = substr ( $remaining, 0, $start ); // Replacement of ' ' by his equivalent ' ' $treatment = str_replace( ' ', ' ', $treatment ); $treatment = str_replace( '-', '−', $treatment ); // composing the string to return by adding the treated string and the // following HTML tag -> 'My friend' $return_string.= $treatment.substr( $remaining, $start, $end-$start+1 ); // the remaining string is deplaced to the part after the '>' of this // loop $remaining = substr ( $remaining, $end + 1, strlen( $remaining ) ); $start = strpos ( $remaining, '<' ); $end = strpos ( $remaining, '>' ); } $treatment = str_replace( ' ', ' ', $remaining ); $treatment = str_replace( '-', '−', $treatment ); $return_string.= $treatment; return $return_string; } // get_extension returns the part of the string after the last "." function get_extension( $filename ) { return substr( strrchr( $filename, '.' ), 1, strlen ( $filename ) ); } // get_filename_wo_extension returns the part of the string before the last // ".". // get_filename_wo_extension( 'test.tar.gz' ) -> 'test.tar' function get_filename_wo_extension( $filename ) { return substr( $filename, 0, strrpos( $filename, '.' ) ); } /** * returns an array contening sub-directories, excluding "CVS" * * @param string $dir * @return array */ function get_dirs($directory) { $sub_dirs = array(); if ($opendir = opendir($directory)) { while ($file = readdir($opendir)) { if ($file != '.' and $file != '..' and is_dir($directory.'/'.$file) and $file != 'CVS') { array_push($sub_dirs, $file); } } } return $sub_dirs; } // The get_picture_size function return an array containing : // - $picture_size[0] : final width // - $picture_size[1] : final height // The final dimensions are calculated thanks to the original dimensions and // the maximum dimensions given in parameters. get_picture_size respects // the width/height ratio function get_picture_size( $original_width, $original_height, $max_width, $max_height ) { $width = $original_width; $height = $original_height; $is_original_size = true; if ( $max_width != "" ) { if ( $original_width > $max_width ) { $width = $max_width; $height = floor( ( $width * $original_height ) / $original_width ); } } if ( $max_height != "" ) { if ( $original_height > $max_height ) { $height = $max_height; $width = floor( ( $height * $original_width ) / $original_height ); $is_original_size = false; } } if ( is_numeric( $max_width ) and is_numeric( $max_height ) and $max_width != 0 and $max_height != 0 ) { $ratioWidth = $original_width / $max_width; $ratioHeight = $original_height / $max_height; if ( ( $ratioWidth > 1 ) or ( $ratioHeight > 1 ) ) { if ( $ratioWidth < $ratioHeight ) { $width = floor( $original_width / $ratioHeight ); $height = $max_height; } else { $width = $max_width; $height = floor( $original_height / $ratioWidth ); } $is_original_size = false; } } $picture_size = array(); $picture_size[0] = $width; $picture_size[1] = $height; return $picture_size; } //-------------------------------------------- PhpWebGallery specific functions /** * returns an array with a list of {language_code => language_name} * * @returns array */ function get_languages() { $dir = opendir(PHPWG_ROOT_PATH.'language'); $languages = array(); while ($file = readdir($dir)) { $path = PHPWG_ROOT_PATH.'language/'.$file; if (is_dir($path) and !is_link($path) and file_exists($path.'/iso.txt')) { list($language_name) = @file($path.'/iso.txt'); $languages[$file] = $language_name; } } closedir($dir); @asort($languages); @reset($languages); return $languages; } /** * replaces the $search into $search in the * given $string. * * case insensitive replacements, does not replace characters in HTML tags * * @param string $string * @param string $search * @param string $style * @return string */ function add_style( $string, $search, $style ) { //return $string; $return_string = ''; $remaining = $string; $start = 0; $end = 0; $start = strpos ( $remaining, '<' ); $end = strpos ( $remaining, '>' ); while ( is_numeric( $start ) and is_numeric( $end ) ) { $treatment = substr ( $remaining, 0, $start ); $treatment = preg_replace( '/('.$search.')/i', '\\0', $treatment ); $return_string.= $treatment.substr( $remaining, $start, $end-$start+1 ); $remaining = substr ( $remaining, $end + 1, strlen( $remaining ) ); $start = strpos ( $remaining, '<' ); $end = strpos ( $remaining, '>' ); } $treatment = preg_replace( '/('.$search.')/i', '\\0', $remaining ); $return_string.= $treatment; return $return_string; } // replace_search replaces a searched words array string by the search in // another style for the given $string. function replace_search( $string, $search ) { // FIXME : with new advanced search, this function needs a rewrite return $string; $words = explode( ',', $search ); $style = 'background-color:white;color:red;'; foreach ( $words as $word ) { $string = add_style( $string, $word, $style ); } return $string; } function pwg_log( $file, $category, $picture = '' ) { global $conf, $user; if ($conf['log']) { $query = ' INSERT INTO '.HISTORY_TABLE.' (date,login,IP,file,category,picture) VALUES (NOW(), \''.(($user['id'] == 2) ? 'guest' : $user['username']).'\', \''.$_SERVER['REMOTE_ADDR'].'\', \''.$file.'\', \''.$category.'\', \''.$picture.'\') ;'; pwg_query($query); } } // format_date returns a formatted date for display. The date given in // argument can be a unixdate (number of seconds since the 01.01.1970) or an // american format (2003-09-15). By option, you can show the time. The // output is internationalized. // // format_date( "2003-09-15", 'us', true ) -> "Monday 15 September 2003 21:52" function format_date($date, $type = 'us', $show_time = false) { global $lang; list($year,$month,$day,$hour,$minute,$second) = array(0,0,0,0,0,0); switch ( $type ) { case 'us' : { list($year,$month,$day) = explode('-', $date); break; } case 'unix' : { list($year,$month,$day,$hour,$minute) = explode('.', date('Y.n.j.G.i', $date)); break; } case 'mysql_datetime' : { preg_match('/^(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})$/', $date, $out); list($year,$month,$day,$hour,$minute,$second) = array($out[1],$out[2],$out[3],$out[4],$out[5],$out[6]); break; } } $formated_date = ''; // before 1970, Microsoft Windows can't mktime if ($year >= 1970) { // we ask midday because Windows think it's prior to midnight with a // zero and refuse to work $formated_date.= $lang['day'][date('w', mktime(12,0,0,$month,$day,$year))]; } $formated_date.= ' '.$day; $formated_date.= ' '.$lang['month'][(int)$month]; $formated_date.= ' '.$year; if ($show_time) { $formated_date.= ' '.$hour.':'.$minute; } return $formated_date; } // notify sends a email to every admin of the gallery function notify( $type, $infos = '' ) { global $conf; $headers = 'From: <'.$conf['mail_webmaster'].'>'."\n"; $headers.= 'Reply-To: '.$conf['mail_webmaster']."\n"; $headers.= 'X-Mailer: PhpWebGallery, PHP '.phpversion(); $options = '-f '.$conf['mail_webmaster']; // retrieving all administrators $query = 'SELECT username,mail_address,language'; $query.= ' FROM '.USERS_TABLE; $query.= " WHERE status = 'admin'"; $query.= ' AND mail_address IS NOT NULL'; $query.= ';'; $result = pwg_query( $query ); while ( $row = mysql_fetch_array( $result ) ) { $to = $row['mail_address']; include( PHPWG_ROOT_PATH.'language/'.$row['language'].'/common.lang.php' ); $content = $lang['mail_hello']."\n\n"; switch ( $type ) { case 'upload' : $subject = $lang['mail_new_upload_subject']; $content.= $lang['mail_new_upload_content']; break; case 'comment' : $subject = $lang['mail_new_comment_subject']; $content.= $lang['mail_new_comment_content']; break; } $infos = str_replace( ' ', ' ', $infos ); $infos = str_replace( '−', '-', $infos ); $content.= "\n\n".$infos; $content.= "\n\n-- \nPhpWebGallery ".PHPWG_VERSION; $content = wordwrap( $content, 72 ); @mail( $to, $subject, $content, $headers, $options ); } } function pwg_write_debug() { global $debug; $fp = @fopen( './log/debug.log', 'a+' ); fwrite( $fp, "\n\n" ); fwrite( $fp, $debug ); fclose( $fp ); } function pwg_query($query) { global $conf,$page; $start = get_moment(); $result = mysql_query($query) or my_error($query."\n"); $time = get_moment() - $start; if (!isset($page['count_queries'])) { $page['count_queries'] = 0; $page['queries_time'] = 0; } $page['count_queries']++; $page['queries_time']+= $time; if ($conf['show_queries']) { $output = ''; $output.= '
['.$page['count_queries'].'] ';
    $output.= "\n".$query;
    $output.= "\n".'(this query time : ';
    $output.= number_format($time, 3, '.', ' ').' s)';
    $output.= "\n".'(total SQL time  : ';
    $output.= number_format($page['queries_time'], 3, '.', ' ').' s)';
    $output.= '
'; echo $output; } return $result; } function pwg_debug( $string ) { global $debug,$t2,$count_queries; $now = explode( ' ', microtime() ); $now2 = explode( '.', $now[0] ); $now2 = $now[1].'.'.$now2[1]; $time = number_format( $now2 - $t2, 3, '.', ' ').' s'; $debug.= '['.$time.', '; $debug.= $count_queries.' queries] : '.$string; $debug.= "\n"; } /** * Redirects to the given URL * * Note : once this function called, the execution doesn't go further * (presence of an exit() instruction. * * @param string $url * @return void */ function redirect( $url ) { global $user, $template, $lang_info, $conf, $lang, $t2, $page; // $refresh, $url_link and $title are required for creating an automated // refresh page in header.tpl $refresh = 0; $url_link = $url; $title = 'redirection'; include( PHPWG_ROOT_PATH.'include/page_header.php' ); $template->set_filenames( array( 'redirect' => 'redirect.tpl' ) ); $template->parse('redirect'); include( PHPWG_ROOT_PATH.'include/page_tail.php' ); exit(); } /** * returns $_SERVER['QUERY_STRING'] whitout keys given in parameters * * @param array $rejects * @returns string */ function get_query_string_diff($rejects = array()) { $query_string = ''; $str = $_SERVER['QUERY_STRING']; parse_str($str, $vars); $is_first = true; foreach ($vars as $key => $value) { if (!in_array($key, $rejects)) { if ($is_first) { $query_string.= '?'; $is_first = false; } else { $query_string.= '&'; } $query_string.= $key.'='.$value; } } return $query_string; } /** * returns available templates */ function get_templates() { return get_dirs(PHPWG_ROOT_PATH.'template'); } /** * returns thumbnail filepath (or distant URL if thumbnail is remote) for a * given element * * the returned string can represente the filepath of the thumbnail or the * filepath to the corresponding icon for non picture elements * * @param string path * @param string tn_ext * @return string */ function get_thumbnail_src($path, $tn_ext = '') { global $conf, $user; if ($tn_ext != '') { $src = substr_replace(get_filename_wo_extension($path), '/thumbnail/'.$conf['prefix_thumbnail'], strrpos($path,'/'), 1); $src.= '.'.$tn_ext; } else { $src = PHPWG_ROOT_PATH; $src.= 'template/'.$user['template'].'/mimetypes/'; $src.= strtolower(get_extension($path)).'.png'; } return $src; } // my_error returns (or send to standard output) the message concerning the // error occured for the last mysql query. function my_error($header) { $error = '
';
  $error.= $header;
  $error.= '[mysql error '.mysql_errno().'] ';
  $error.= mysql_error();
  $error.= '
'; die ($error); } /** * creates an array based on a query, this function is a very common pattern * used here * * @param string $query * @param string $fieldname * @return array */ function array_from_query($query, $fieldname) { $array = array(); $result = pwg_query($query); while ($row = mysql_fetch_array($result)) { array_push($array, $row[$fieldname]); } return $array; } /** * instantiate number list for days in a template block * * @param string blockname * @param string selection */ function get_day_list($blockname, $selection) { global $template; $template->assign_block_vars( $blockname, array('SELECTED' => '', 'VALUE' => 0, 'OPTION' => '--')); for ($i = 1; $i <= 31; $i++) { $selected = ''; if ($i == (int)$selection) { $selected = 'selected="selected"'; } $template->assign_block_vars( $blockname, array('SELECTED' => $selected, 'VALUE' => $i, 'OPTION' => str_pad($i, 2, '0', STR_PAD_LEFT))); } } /** * instantiate month list in a template block * * @param string blockname * @param string selection */ function get_month_list($blockname, $selection) { global $template, $lang; $template->assign_block_vars( $blockname, array('SELECTED' => '', 'VALUE' => 0, 'OPTION' => '------------')); for ($i = 1; $i <= 12; $i++) { $selected = ''; if ($i == (int)$selection) { $selected = 'selected="selected"'; } $template->assign_block_vars( $blockname, array('SELECTED' => $selected, 'VALUE' => $i, 'OPTION' => $lang['month'][$i])); } } ?>