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]));
}
}
?>