PHP Variable in JavaScript Tag

I need a help with using PHP variable in JavaScript situation. I want to use PHP variable in a morris chart such as,

var area = new Morris.Area({
 element: 'revenue-chart',
 resize: true,
 data: [
 {y: '6D', fab: 20004, qc: 0},
 {y: '5D', fab: 2778, qc: 0},
 {y: '4D', fab: 4912, qc: 0},
 {y: '3D', fab: 3767, qc: 0},
 {y: '2D', fab: 6810, qc: 0},
 {y: '1D', fab: <?php echo $sumWeightYesterday; ?>, qc: 0},
 {y: 'NOW', fab: 4820, qc: 0}
 ],
 parseTime: false,
 xkey: 'y',
 ykeys: ['fab', 'qc'],
 labels: ['FAB', 'QC'],
 lineColors: ['#a0d0e0', '#3c8dbc'],
 hideHover: 'auto'
 });

I want to use $sumWeightYesterday but it displays 0 on the data.

Please help me, Thanks

• 3
  Looks correct. If this is in an external JS file, it has to be .php too and served with appropriate mime headers

  mplungjan

  – mplungjan

  2014年09月09日 04:29:31 +00:00

  Commented Sep 9, 2014 at 4:29
• 2
  What does the generated code look like? I.e. the code the browser evaluates?

  Felix Kling

  – Felix Kling

  2014年09月09日 04:29:50 +00:00

  Commented Sep 9, 2014 at 4:29
• 3
  Assuming this file is executed by PHP and assuming that $sumWeightYesterday actually has a value (not 0), you should always use json_encode() when injecting into JavaScript. For example fab: <?= json_encode($sumWeightYesterday) ?>

  Phil

  – Phil

  2014年09月09日 04:32:19 +00:00

  Commented Sep 9, 2014 at 4:32
• 1
  @Phil, didn't know about "always should use json_encode()" — any reason for that?

  l'L'l

  – l'L'l

  2014年09月09日 04:33:51 +00:00

  Commented Sep 9, 2014 at 4:33
• 2
  @l'L'l it just sanitises your variable for use in JavaScript. For example, strings will be quoted correctly without having to worry about escaping single / double quotes, etc.

  Phil

  – Phil

  2014年09月09日 04:37:40 +00:00

  Commented Sep 9, 2014 at 4:37

1 Answer 1

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