/**
*
* Returns positions of <script>...</script> elements
* @param $content
* @return array
*/
private function getScriptAreas($content)
{
$openTag = "<script";
$closingTag = "</script";
$ending = ">";
$offset = 0;
$areas = array();
while (($openTagStart = String::getBinaryStripos($content, $openTag, $offset)) !== false) {
$endingPos = String::getBinaryStrpos($content, $ending, $openTagStart);
if ($endingPos === false) {
break;
}
$attrsStart = $openTagStart + strlen($openTag);
$attrs = String::getBinarySubstring($content, $attrsStart, $endingPos - $attrsStart);
$openTagEnd = $endingPos + strlen($ending);
$realClosingTag = $closingTag . $ending;
$closingTagStart = String::getBinaryStripos($content, $realClosingTag, $openTagEnd);
if ($closingTagStart === false) {
$offset = $openTagEnd;
continue;
}
$closingTagEnd = $closingTagStart + strlen($realClosingTag);
while (isset($content[$closingTagEnd]) && $content[$closingTagEnd] === "\n") {
$closingTagEnd++;
}
$area = new \stdClass();
$area->attrs = $attrs;
$area->openTagStart = $openTagStart;
$area->openTagEnd = $openTagEnd;
$area->closingTagStart = $closingTagStart;
$area->closingTagEnd = $closingTagEnd;
$areas[] = $area;
$offset = $closingTagEnd;
}
return $areas;
}
