I'm upgrading some projects to 8.1, so Im using Fuelphp 1.9Develop.
Most things are working fine, but I'm getting a probably bug in the image driver(core/classes/image/driver.php), specifically in the _resize function, which I use a lot in my projects.
When I try to use this function (with the gd driver, but I suppose that with others I will get the same error) I get the following error:
"substr(): Passing null to parameter #1 ($string) of type string is deprecated"
The error jumps on the next line (line 255):
"elseif (substr($height, -1) == '%' and $width == null)"
Am I using the wrong function or is it a driver problem?
Note: I use the function only with the first parameter, eg: $img->load(...)->resize($size)->save(...);
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