| protected extractHtmlTagValue ( string $content, string $tag, string $matchAttributeName, string $matchAttributeValue, string $valueAttributeName ) : string | boolean | ||
| $content | string | HTML content to be be parsed. |
| $tag | string | name of the source tag. |
| $matchAttributeName | string | name of the source tag attribute, which should contain $matchAttributeValue |
| $matchAttributeValue | string | required value of $matchAttributeName |
| $valueAttributeName | string | name of the source tag attribute, which should contain searched value. |
| return | string | boolean | searched value, "false" on failure. |
protected function extractHtmlTagValue($content, $tag, $matchAttributeName, $matchAttributeValue, $valueAttributeName)
{
preg_match_all("#<{$tag}[^>]*{$matchAttributeName}=['\"].*?{$matchAttributeValue}.*?['\"][^>]*{$valueAttributeName}=['\"](.+?)['\"][^>]*/?>#i", $content, $matches1);
preg_match_all("#<{$tag}[^>]*{$valueAttributeName}=['\"](.+?)['\"][^>]*{$matchAttributeName}=['\"].*?{$matchAttributeValue}.*?['\"][^>]*/?>#i", $content, $matches2);
$result = array_merge($matches1[1], $matches2[1]);
return empty($result) ? false : $result[0];
}