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php getimagesize function gets image size

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Release： 2016-07-25 08:51:50
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  2. /* 1.jpg The image whose size is to be obtained*/
  3. $arr = getimagesize("1.jpg");
  4. /**
  5. * Here $arr is an array type
  6. * $arr[0] is the width of the image
  7. * $arr[1] is the height of the image
  8. * $arr[2] is the format of the image, including jpg, gif, png, etc.
  9. * $arr[3] is the width and height of the image, and the content is width="xxx" height="yyy"
  10. */
  11. /* The following output Same content*/
  12. echo "";
  13. echo "";
  14. ?>
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php getimagesize函数获取图片尺寸
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