vars = [];
$this->og = [];
}
function set($property,$value) {
if (strpos($property,'og:') === 0) {
$this->og[$property] = $value;
}
else {
$this->vars[$property] = $value;
}
}
function check_required() {
if (
($this->og)
&& array_key_exists('og:title',$this->og)
&& array_key_exists('og:type', $this->og)
&& array_key_exists('og:image',$this->og)
&& array_key_exists('og:url', $this->og)
) {
return true;
}
return false;
}
function get_field($field) {
if (strpos($field,'og:') === 0) {
$arr = $this->og;
}
else {
$arr = $this->vars;
}
if ($arr && array_key_exists($field,$arr) && $arr[$field]) {
return $arr[$field];
}
return false;
}
function get() {
$o = '';
if ($this->vars) {
foreach ($this->vars as $k => $v) {
$o .= '' . "\r\n" ;
}
}
if ($this->check_required()) {
foreach ($this->og as $k => $v) {
$o .= '' . "\r\n" ;
}
}
if ($o) {
return "\r\n" . $o;
}
return $o;
}
}