[ 0 => 'This is a Simple text.', 1 => 'mi',]
[ 'result' => [ 'string' => 'is is a Simple text.', ], 'php_version' => '7.1.33 Linux x86_64',]
[ 0 => 'This is a Simple text.', 1 => 'S',]
[ 'result' => [ 'string' => 'Simple text.', ], 'php_version' => '7.1.33 Linux x86_64',]