PHP Get picture size (width, height) _php tutorial

This article mainly explains PHP to obtain the image size (width, height) function, namely the getimagesize () function.

Syntax: array getimagesize (string filename [, array &imageinfo])

Function: the getimagesize () function will determine any GIF,JPG,PNG,SWF,SWC,PSD,TIFF,BMP,IFF,JP2,JPX,JB2,JPC,XBM or wbmp image file and return the file size, size, A file type and a height/width text string that can be used in markup in a normal HTML file. If the specified image cannot be accessed or is not a valid image, GetImageSize () returns false and produces a e_warning level error.

Note:

(1) This function does not require GD Image library support.

(2) The function can be used to obtain the remote data in addition to the local image or flash information.

Example:

 
  "; echo" Image height ". $height; echo"
"; echo" Image type ". $type; echo"
"Echo" Attribute ". $attr;

The output information is as follows:

Image width 200

Image Height 55

Image Type 1

Image attribute width= "55" height= "

The parameters of the picture type are as follows:

1 = GIF 5 = PSD 9 = JPC = SWC

2 = JPG 6 = BMP = JP2 = IFF

3 = PNG 7 = TIFF (Intel byte order) one = JPX = WBMP

4 = SWF 8 = TIFF (motorola byte order) = JB2 = XBM

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http://www.bkjia.com/PHPjc/764094.html www.bkjia.com true http://www.bkjia.com/PHPjc/764094.html techarticle This article mainly explains PHP to obtain the image size (width, height) function, namely the getimagesize () function. Syntax: array getimagesize (string filename [, array imageinfo]) function: ...

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