Automattic\WooCommerce\Blueprint

ClassExtractor::apply_variable_replacement │ private │ WC 1.0

Applies a replacement to a variable in a specific method.

Method of the class: ClassExtractor{}

No Hooks.

Returns

String. The updated file content.

Usage

// private - for code of main (parent) class only
$result = $this->apply_variable_replacement( $file_content, $method_name, $variable_name, $new_value );

$file_content(string) (required)

The content of the PHP file.

$method_name(string) (required)

The name of the method containing the variable.

$variable_name(string) (required)

The name of the variable to replace.

$new_value(mixed) (required)

The new value for the variable.

ClassExtractor::apply_variable_replacement() ClassExtractor::apply variable replacement code ^{WC 9.9.5}

private function apply_variable_replacement( $file_content, $method_name, $variable_name, $new_value ) {
	$pattern = '/function\s+' . preg_quote( $method_name, '/' ) . '\s*\([^)]*\)\s*\{\s*(.*?)\s*\}/s';
	if ( preg_match( $pattern, $file_content, $matches ) ) {
		$method_body = $matches[1];

		// Security check: Check if it's necessary to use var_export.
		$new_value_exported = var_export( $new_value, true ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_var_export
		$variable_pattern   = '/\$' . preg_quote( $variable_name, '/' ) . '\s*=\s*[^;]+;/';
		$replacement        = '$' . $variable_name . ' = ' . $new_value_exported . ';';

		$updated_method_body = preg_replace( $variable_pattern, $replacement, $method_body, 1 );

		if ( null !== $updated_method_body ) {
			$file_content = str_replace( $method_body, $updated_method_body, $file_content );
		}
	}

	return $file_content;
}