How do you get the width and height of an SVG picture in PHP?

user_547726 0
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I tried to use getimagesize() on an SVG file, but it failed.

I know that SVG is “Scalable Vector Graphics”, but I find that Google Chrome’s “Review elements” can perfectly get the dimensions of an SVG picture, so I suspect that this is also possible in PHP.

If it is difficult to get the dimensions, is there any way to judge whether an SVG picture is vertical or horizontal?

dimensions svg php
6 Answers

Here's a quick and dirty hack to check the viewbox size with regex. It works in most cases but do see the other answers to get an idea of its limitations.

preg_match("#viewbox=[\"']\d* \d* (\d*) (\d*)#i", file_get_contents('file.svg'), $d);
$width = $d[1];
$height = $d[2];
user_6616430

with simplexml_load_file

$svgXML = simplexml_load_file($imgUri);
list($originX, $originY, $relWidth, $relHeight) = explode(' ', $svgXML['viewBox']);

with preg_match regex (this one does for int and float values in viewBow values)

preg_match("#viewbox=[\"']\d* \d* (\d*+(\.?+\d*)) (\d*+(\.?+\d*))#i", file_get_contents($imgUri), $d);
$relWidth = (float) $d[1];
$relHeight = (float) $d[3];
user_23377690
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