wp-includes/class-wp-block-parser.php:323Pushes a length of text from the input document to the output list as a freeform block.
$lengthnulloptionalnull public function add_freeform( $length = null ) { $length = $length ? $length : strlen( $this->document ) - $this->offset; if ( 0 === $length ) { return; } $this->output[] = (array) $this->freeform( substr( $this->document, $this->offset, $length ) ); }Introduced in 5.0.0. One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$length retyped from null to null|int.verified against sourcesrc/wp-includes/class-wp-block-parser.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.