mbstring extension must be loaded in order to run mPDF
adf:code9
*.out提示:EXIT CODE: 9
out文件结尾如果出现如下内容:
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= PID 61631 RUNNING AT c028
= EXIT CODE: 9
= CLEANING UP REMAINING PROCESSES
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES