Line Chart using google chart API in PHP

googleLineChart.php

    <script type="text/javascript" src="https://www.google.com/jsapi"></script>
    <script type="text/javascript">
      google.load("visualization", "1", {packages:["corechart"]});
      google.setOnLoadCallback(drawChart);
      function drawChart() {
        var data = google.visualization.arrayToDataTable([
          ['Year', 'AIDMK', 'DMK','INC','CPI','CPI-M','PMK','MDMK','DMDK'],
          ['1977',  130,    48,    27,    5 ,    12,    0 ,   0,    0     ],
          ['1980',  129,    37,    31,    9 ,    11,    0,    0,    0    ],
          ['1984',  132,    24,    61,    2 ,    5,     0,    0,    0    ],
          ['1989',  27,     150,   26,    3 ,    15,    0 ,   0,    0   ] ,
          ['1991',  164,    2,     60,    1 ,    1,     0 ,   0,    0   ],
          ['1996',  4,      173,   0,     8 ,    1 ,    4 ,   0,    0  ],
          ['2001',  132,    31,    7,     5 ,    6 ,    20,   0,   0  ],
          ['2006',  61,      96,   34,    6 ,    9,     18,   6,    1   ],
          ['2011',  150,    23,    5,     9 ,    10,    3,    0,    29  ]
        ]);

        var options = {
          title: 'Election Performance in Tamil Nadu Assembly 1977 to 2011'
        };

        var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
        chart.draw(data, options);
      }
    </script>

    <div id="chart_div" style="width: 1000px; height: 500px;"></div>