问题
I try load font by imageloadfont function. When I running script I receive error:
gd warning: product of memory allocation multiplication would exceed INT_MAX, failing operation gracefully
PHP Warning: imageloadfont(): Error reading font, invalid font header
What can cause this problem?
Env:
Ubuntu 13.04 64-bit
PHP 5.4.9-4ubuntu2.3
回答1:
I saw this error while trying to randomly use one of the system's .ttf file. The PHP Manual example has .gdf font file.
My image dimensions are 1013 x 638 (646294 pixels), an ID card sized image in 300 dpi.
PHP_INT_MAX in my case has a value of 2147483647 and memory limit set to 128 MB.
The converted new font file worked (.gdf format font)
Font converter: www.wedwick.com/wftopf.exe
Source: http://www.animeviews.com/article.php?ID=263
回答2:
I found the solution. The problem wasn't in the imageloadfont function.
I was trying to load the font (.ttf) to imageloadfont and set it on the image. Instead of using the imagestring function, I now used imagettftext to load the custom font and place the string on the picture.
来源：https://stackoverflow.com/questions/19196412/gd-error-while-try-load-font