src/Transformer.php
private function replace(string $pattern, string $replacement, string $targetFile)
    {
        $this->filesystem->put(
            $targetFile,
            preg_replace(
                $pattern,
                $replacement,
                $this->filesystem->get($targetFile)
            )
        );
    }
private function replace(string $pattern, string $replacement, string $targetFile)
    {
        $this->filesystem->put(
            $targetFile,
            preg_replace(
                $pattern,
                $replacement,
                $this->filesystem->get($targetFile)
            )
        );
    }
Replace string in the given file.

@param string $pattern
@param string $replacement
@param string $targetFile

@return void