PHP：svn_update和shell_exec（“svn up”.DIR）

Question

Whats the difference between a svn_update and doing a echo shell_exec("svn up ".DIR);

Answer 1

My guess is the big block of text that says:

This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.