function extract_tags($Html, $Begin, $End, $Separator = '', $Contain1 = null, $Contain2 = null, $Contain3 = null)
{
$Result = array();
$Begin = prepare_ereg_param($Begin);
$BArr = spliti($Begin, $Html);
$i = 0;
foreach ($BArr as $s) {
if ($i > 0) {
$PSE = stripos($s, $End);
if ($PSE === false) {
continue;
}
$RSt = substr($s, 0, $PSE);
if ($Contain1) {
$PSC1 = stripos($RSt, $Contain1);
if ($PSC1 === false) {
continue;
}
if ($Contain2) {
$PSC2 = stripos($RSt, $Contain2, $PSC1 + strlen($Contain1));
if ($PSC2 === false) {
continue;
}
if ($Contain3) {
$PSC3 = stripos($RSt, $Contain3, $PSC2 + strlen($Contain2));
if ($PSC3 === false) {
continue;
}
}
}
}
$Result[] = $Begin . $RSt . $End;
}
$i++;
}
if (count($Result) > 0) {
return implode($Separator, $Result);
} else {
return null;
}
}
function numbering_tag_count($Html, $TagName, &$TagNo)
{
$TagNo = 0;
$Begin = prepare_ereg_param("<{$TagName}");
$End = prepare_ereg_param("</{$TagName}");
do {
$BArr = null;
$BArr = spliti($Begin, $Html);
if (count($BArr) == 1) {
break;
}
for ($i = 1, $m = count($BArr); $i < $m; $i++) {
$s = $BArr[$i];
if ($s[0] != ' ' and $s[0] != '>') {
continue;
}
$PSE = stripos($s, $End);
if ($PSE === false) {
continue;
}
$TagNo++;
$TagNoProp = "\tTagNo=\"{$TagName}{$TagNo}\"";
$EArr = spliti("</{$TagName}", $s);
if (count($EArr) > 1) {
$EArr[1] = $TagNoProp . $EArr[1];
}
$BArr[$i] = $TagNoProp . implode($End, $EArr);
}
$Html = implode($Begin, $BArr);
$Html = str_ireplace("<{$TagName}\t", "<|{$TagName}\t", $Html);
$Html = str_ireplace("</{$TagName}\t", "<|/{$TagName}\t", $Html);
} while (true);
$Html = str_ireplace("<|{$TagName}\t", "<{$TagName}\t", $Html);
$Html = str_ireplace("<|/{$TagName}\t", "</{$TagName}\t", $Html);
return $Html;
}