' . mysql_errno() . ': ' . mysql_error() . '
';
}
//------------------------------------------------------------------------------------------------------
// Connect with MySQL server and select database
// Arguments: server name, user name, user password, database name
//
function db_open($db_server, $db_user, $db_pass, $db_name) {
$status = true;
if(!@mysql_connect($db_server, $db_user, $db_pass)) {
sql_error();
$status = false;
}
else if(!@mysql_select_db($db_name)) {
sql_error();
$status = false;
}
return $status;
}
//------------------------------------------------------------------------------------------------------
// Convert timestamp to YYYY-MM-DD HH:MM:SS
// Arguments: timestamp (YYYYMMDDHHMMSS)
//
function timeStamp($ts) {
return substr($ts, 0, 4) . '-' . substr($ts, 4, 2) . '-' . substr($ts, 6, 2) . ' ' .
substr($ts, 8, 2) . ':' . substr($ts, 10, 2) . ':' . substr($ts, 12);
}
//------------------------------------------------------------------------------------------------------
// Cut text to a specified length
// Arguments: text, length
//
function cutString($str, $length) {
if(strlen($str) > $length) {
$words = explode(' ', $str);
$wCnt = count($words);
if($wCnt == 1) {
$str = substr($str, 0, $length) . '...';
}
else {
$str = '';
$cnt = 0;
while($cnt < $wCnt && strlen($str) < $length) {
$str .= trim($words[$cnt++]) . ' ';
}
if($cnt < $wCnt) $str .= '...';
}
}
return $str;
}
//------------------------------------------------------------------------------------------------------
// Search text between start-tag and end-tag
// Arguments: text, start-tag, end-tag
//
function searchCode($str, $pStart, $pEnd) {
$matches = array();
$a = strlen($pStart);
$b = strlen($pEnd);
do {
$y = 0;
if(strlen($str) > strlen($pStart) + strlen($pEnd)) {
$s = strtolower($str);
$x = strpos($s, $pStart);
$y = strpos($s, $pEnd, $x + $a);
$z = strpos($s, $pStart, $x + $a);
if($x >= 0 && $y) {
while($z && $z < $y) {
$y = strpos($s, $pEnd, $y + $b);
$z = strpos($s, $pStart, $z + $a);
}
$y += $b;
$matches[] = substr($str, $x, $y - $x);
$str = substr($str, $y);
}
}
}
while($x >= 0 && $y > 0);
return $matches;
}
//------------------------------------------------------------------------------------------------------
// Convert text between start-tag and end-tag to base64
// Arguments: text, start-tag, end-tag
//
function encodeString($str, $pStart, $pEnd) {
$matches = searchCode($str, $pStart, $pEnd);
for($i = 0; $i < count($matches); $i++) {
$str = str_replace($matches[$i], chr(1) . base64_encode($matches[$i]) . chr(2), $str);
}
return $str;
}
//------------------------------------------------------------------------------------------------------
// Decode base64-text
// Arguments: text
//
function decodeString($str) {
if(preg_match_all('/' . chr(1) . '([^' . chr(2) . ']+)' . chr(2) . '/', $str, $m)) {
for($i = 0; $i < count($m[0]); $i++) {
$str = str_replace($m[0][$i], base64_decode($m[1][$i]), $str);
}
}
return $str;
}
//------------------------------------------------------------------------------------------------------
// Delete repeated characters (more than 3 times)
// Arguments: text
//
function checkRepeats($str) {
$newstr = substr($str, 0, 3);
for($i = 3; $i < strlen($str); $i++) {
if($str[$i] != $str[$i-1] || $str[$i] != $str[$i-2] || $str[$i] != $str[$i-3]) $newstr .= $str[$i];
}
return $newstr;
}
//------------------------------------------------------------------------------------------------------
// Replace long words with image
// Arguments: text, max. word length
//
function checkLongWords($str, $wordLength) {
global $imgPath;
if($wordLength && strlen($str) > $wordLength) {
$html = array();
if(preg_match_all('/<[a-z\/][^>]+>/i', $str, $m)) {
for($i = 0; $i < count($m[0]); $i++) {
$html[$i] = $m[0][$i];
$str = str_replace($m[0][$i], " &HTML$i; ", $str);
}
}
$str = str_replace("\r\n", "\n", $str);
$str = str_replace("\r", "\n", $str);
$lines = explode("\n", $str);
$str = '';
for($i = 0; $i < count($lines); $i++) {
$words = explode(' ', $lines[$i]);
for($j = 0; $j < count($words); $j++) {
$word = function_exists('html_entity_decode') ? html_entity_decode($words[$j]) : $words[$j];
if(strlen($word) > $wordLength && !preg_match('/&#\d{1,6};/', $words[$j])) {
if(preg_match('%^(ftp|https?)://%i', $word)) {
$str .= "" .
substr($word, 0, $wordLength) . '...' . '';
}
else $str .= '
';
}
else $str .= $words[$j] . ' ';
}
if($i < count($lines) - 1) $str .= "\n";
}
if(preg_match_all('/ &HTML(\d+); /', $str, $m)) {
for($i = 0; $i < count($m[0]); $i++) {
$str = str_replace($m[0][$i], $html[$m[1][$i]], $str);
}
}
}
return $str;
}
//------------------------------------------------------------------------------------------------------
// Add image size and replace oversized images with thumbnail and invalid images with icon
// Arguments: text, max. image width
//
function checkImages($str, $maxWidth) {
global $imgPath;
if(preg_match_all('/ src="([^">]+)"/i', $str, $m)) {
for($i = 0; $i < count($m[0]); $i++) {
list($width, $height, $type) = @getimagesize($m[1][$i]);
if(!$width || $type < 1 || $type > 3) {
$width = 17;
$height = 14;
$img = $imgPath . 'noimage.gif';
}
else if($width > $maxWidth) {
$perc = $maxWidth / $width;
$width = round($width * $perc);
$height = round($height * $perc);
$img = $imgPath . "thumbnail.php?width=$width&height=$height&file=" . urlencode($m[1][$i]);
}
else $img = $m[1][$i];
if($img != $imgPath . 'nourl.gif' && $img != $imgPath . 'nohtml.gif') {
$size = 'width="' . $width . '" height="' . $height . '"';
$str = str_replace($m[0][$i], ' src="' . $img . '" ' . $size, $str);
}
}
}
return $str;
}
//------------------------------------------------------------------------------------------------------
// Check if text contains HTML links or URLs
// Arguments: text, replace text (optional)
//
function checkLinks($str, $replace = '') {
$link1 = '.*?<\/a>';
$link2 = '