无法在我的PHP代码中运行JavaScript

Question

So I'm trying to run some JavaScript code using PHP by echoing it. The issues I'm having is that it's just printing the JavaScript code onto the webpage instead of running it. The file itself is a PHP file. Here is a snippet of my code that is causing me issues:

<?php 

                $file = file('locations.csv');
                foreach($file as $k)
                    $csv[] = explode(',', $k);


                echo '

                <script>
                var map, heatmap;

                    // Initialize and add the map
                    function initMap() {
                    // The location of Uluru
                    var uluru = {lat: -27.469644, lng: 153.025245};

                    // The map, centered at Uluru
                    map = new google.maps.Map(

                      document.getElementById(\'map\'), {zoom: 16, center: uluru});
                    // The marker, positioned at Uluru
                    //var marker = new google.maps.Marker({position: uluru, map: map});
                    heatmap = new google.maps.visualization.HeatmapLayer({
                      data: getPoints(),
                      map: map
                    });

                    }


                    function toggleHeatmap() {
                        heatmap.setMap(heatmap.getMap() ? null : map);
                    }
                    function changeGradient() {
                    var gradient = [
                      \'rgba(0, 255, 255, 0)\',
                      \'rgba(0, 255, 255, 1)\',
                      \'rgba(0, 191, 255, 1)\',
                      \'rgba(0, 127, 255, 1)\',
                      \'rgba(0, 63, 255, 1)\',
                      \'rgba(0, 0, 255, 1)\',
                      \'rgba(0, 0, 223, 1)\',
                      \'rgba(0, 0, 191, 1)\',
                      \'rgba(0, 0, 159, 1)\',
                      \'rgba(0, 0, 127, 1)\',
                      \'rgba(63, 0, 91, 1)\',
                      \'rgba(127, 0, 63, 1)\',
                      \'rgba(191, 0, 31, 1)\',
                      \'rgba(255, 0, 0, 1)\'
                    ]
                        heatmap.set(\'gradient\', heatmap.get(\'gradient\') ? null : gradient);
                    }
                    function changeRadius() {
                        heatmap.set(\'radius\', heatmap.get(\'radius\') ? null : 20);
                    }

                    function changeOpacity() {
                        heatmap.set(\'opacity\', heatmap.get(\'opacity\') ? null : 0.2);
                    }

                    function getPoints() {
                        return [



                new google.maps.LatLng('.$csv[1][0].', '.$csv[1][1].'),

                new google.maps.LatLng(-27.469628, 153.025231),
                ];
                }
                </script>

                ';

                ?>

Here is what it outputs:

I'm at a loss here, no idea whats causing the issues.

Answer 1

I fixed it! Turns out it was because I was running the file directly and not through the XAMPP server. Im a moron, Sorry about the wast of time guys! and thankyou for all of the suggestions