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piwigo/include/functions.inc.php
gweltas e1b59cb0a8 Corrections de quelques warnings php. 
git-svn-id: http://piwigo.org/svn/branches/release-1_3@274 68402e56-0260-453c-a942-63ccdbb3a9ee
2004-01-11 23:40:39 +00:00

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<?php
/***************************************************************************
* functions.inc.php *
* ------------------- *
* application : PhpWebGallery 1.3 <http://phpwebgallery.net> *
* author : Pierrick LE GALL <pierrick@z0rglub.com> *
* *
* $Id$
* *
***************************************************************************
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; *
* *
***************************************************************************/
include( PREFIX_INCLUDE.'./include/functions_user.inc.php' );
include( PREFIX_INCLUDE.'./include/functions_session.inc.php' );
include( PREFIX_INCLUDE.'./include/functions_category.inc.php' );
include( PREFIX_INCLUDE.'./include/functions_xml.inc.php' );
include( PREFIX_INCLUDE.'./include/functions_group.inc.php' );
//----------------------------------------------------------- generic functions
// get_enums returns an array containing the possible values of a enum field
// in a table of the database.
function get_enums( $table, $field )
{
// retrieving the properties of the table. Each line represents a field :
// columns are 'Field', 'Type'
$result=mysql_query("desc $table");
while ( $row = mysql_fetch_array( $result ) )
{
// we are only interested in the the field given in parameter for the
// function
if ( $row['Field']==$field )
{
// retrieving possible values of the enum field
// enum('blue','green','black')
$option = explode( ',', substr($row['Type'], 5, -1 ) );
for ( $i = 0; $i < sizeof( $option ); $i++ )
{
// deletion of quotation marks
$option[$i] = str_replace( "'", '',$option[$i] );
}
}
}
mysql_free_result( $result );
return $option;
}
// get_boolean transforms a string to a boolean value. If the string is
// "false" (case insensitive), then the boolean value false is returned. In
// any other case, true is returned.
function get_boolean( $string )
{
$boolean = true;
if ( preg_match( '/^false$/i', $string ) )
{
$boolean = false;
}
return $boolean;
}
// array_remove removes a value from the given array if the value existed in
// this array.
function array_remove( $array, $value )
{
$output = array();
foreach ( $array as $v ) {
if ( $v != $value ) array_push( $output, $v );
}
return $output;
}
// The function get_moment returns a float value coresponding to the number
// of seconds since the unix epoch (1st January 1970) and the microseconds
// are precised : e.g. 1052343429.89276600
function get_moment()
{
$t1 = explode( ' ', microtime() );
$t2 = explode( '.', $t1[0] );
$t2 = $t1[1].'.'.$t2[1];
return $t2;
}
// The function get_elapsed_time returns the number of seconds (with 3
// decimals precision) between the start time and the end time given.
function get_elapsed_time( $start, $end )
{
return number_format( $end - $start, 3, '.', ' ').' s';
}
// - The replace_space function replaces space and '-' characters
// by their HTML equivalent &nbsb; and &minus;
// - The function does not replace characters in HTML tags
// - This function was created because IE5 does not respect the
// CSS "white-space: nowrap;" property unless space and minus
// characters are replaced like this function does.
// - Example :
// <div class="foo">My friend</div>
// ( 01234567891111111111222222222233 )
// ( 0123456789012345678901 )
// becomes :
// <div class="foo">My&nbsp;friend</div>
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 '&nbsp;'
$treatment = str_replace( ' ', '&nbsp;', $treatment );
$treatment = str_replace( '-', '&minus;', $treatment );
// composing the string to return by adding the treated string and the
// following HTML tag -> 'My&nbsp;friend</div>'
$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( ' ', '&nbsp;', $remaining );
$treatment = str_replace( '-', '&minus;', $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
*
* @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 ) )
{
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
// get_languages retourne un tableau contenant tous les languages
// disponibles pour PhpWebGallery
function get_languages( $rep_language )
{
$languages = array();
$i = 0;
if ( $opendir = opendir ( $rep_language ) )
{
while ( $file = readdir ( $opendir ) )
{
if ( is_file ( $rep_language.$file )
and $file != "index.php"
and strrchr ( $file, "." ) == ".php" )
{
$languages[$i++] =
substr ( $file, 0, strlen ( $file )
- strlen ( strrchr ( $file, "." ) ) );
}
}
}
return $languages;
}
// - add_style replaces the
// $search into <span style="$style">$search</span>
// in the given $string.
// - The function does not replace characters in HTML tags
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 = str_replace( $search, '<span style="'.$style.'">'.
$search.'</span>', $treatment );
$return_string.= $treatment.substr( $remaining, $start, $end-$start+1 );
$remaining = substr ( $remaining, $end + 1, strlen( $remaining ) );
$start = strpos ( $remaining, '<' );
$end = strpos ( $remaining, '>' );
}
$treatment = str_replace( $search, '<span style="'.$style.'">'.
$search.'</span>', $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 )
{
$words = explode( ',', $search );
$style = 'background-color:white;color:red;';
foreach ( $words as $word ) {
$string = add_style( $string, $word, $style );
}
return $string;
}
function database_connection()
{
include( PREFIX_INCLUDE.'./include/mysql.inc.php' );
define( 'PREFIX_TABLE', $prefixeTable );
@mysql_connect( $cfgHote, $cfgUser, $cfgPassword )
or die ( "Could not connect to server" );
@mysql_select_db( $cfgBase )
or die ( "Could not connect to database" );
}
function pwg_log( $file, $category, $picture = '' )
{
global $conf, $user;
if ( $conf['log'] )
{
$query = 'insert into '.PREFIX_TABLE.'history';
$query.= ' (date,login,IP,file,category,picture) values';
$query.= " (".time().", '".$user['username']."'";
$query.= ",'".$_SERVER['REMOTE_ADDR']."'";
$query.= ",'".$file."','".$category."','".$picture."');";
mysql_query( $query );
}
}
function templatize_array( $array, $global_array_name, $handle )
{
global $vtp, $lang, $page, $user, $conf;
foreach ( $array as $value ) {
if (isset(${$global_array_name}[$value]))
$vtp->setGlobalVar( $handle, $value, ${$global_array_name}[$value] );
}
}
// 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;
switch ( $type )
{
case 'us' :
list( $year,$month,$day ) = explode( '-', $date );
$unixdate = mktime(0,0,0,$month,$day,$year);
break;
case 'unix' :
$unixdate = $date;
break;
}
$formated_date = $lang['day'][date( "w", $unixdate )];
$formated_date.= date( " j ", $unixdate );
$formated_date.= $lang['month'][date( "n", $unixdate )];
$formated_date.= date( ' Y', $unixdate );
if ( $show_time )
{
$formated_date.= date( ' G:i', $unixdate );
}
return $formated_date;
}
// notify sends a email to every admin of the gallery
function notify( $type, $infos = '' )
{
global $conf;
$headers = 'From: '.$conf['webmaster'].' <'.$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 '.PREFIX_TABLE.'users';
$query.= " WHERE status = 'admin'";
$query.= ' AND mail_address IS NOT NULL';
$query.= ';';
$result = mysql_query( $query );
while ( $row = mysql_fetch_array( $result ) )
{
$to = $row['mail_address'];
include( PREFIX_INCLUDE.'./language/'.$row['language'].'.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( '&nbsp;', ' ', $infos );
$infos = str_replace( '&minus;', '-', $infos );
$content.= "\n\n".$infos;
$content.= "\n\n-- \nPhpWebGallery ".$conf['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 $count_queries,$queries_time;
$start = get_moment();
$output = '';
$count_queries++;
$output.= '<br /><br />['.$count_queries.'] '.$query;
$result = mysql_query( $query );
$time = get_moment() - $start;
$queries_time+= $time;
$output.= '<b>('.number_format( $time, 3, '.', ' ').' s)</b>';
$output.= '('.number_format( $queries_time, 3, '.', ' ').' s)';
// 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";
}
?>
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