WriteDTDEntity

:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

Writes a full DTD entity

public function writeDTDEntity(
  string $name,
  string $content,
  bool $pe = false,
  string $publicid = '',
  string $systemid = '',
  string $ndataid = '',
): bool;

Parameters

• string $name - The name of the entity.
• string $content - The content of the entity.
• bool $pe = false
• string $publicid = ''
• string $systemid = ''
• string $ndataid = ''

Returns

• bool - - Returns TRUE on success or FALSE on failure.