預(yù)定義常量

下列常量由此擴(kuò)展定義，且僅在此擴(kuò)展編譯入 PHP 或在運(yùn)行時(shí)動(dòng)態(tài)載入時(shí)可用。

The following two tables lists all constants defined by the ps extension.

Contants for line caps

Name	Meaning
ps_LINECAP_BUTT
ps_LINECAP_ROUND
ps_LINECAP_SQUARED

Contants for line joins

Name	Meaning
ps_LINEJOIN_MITER
ps_LINEJOIN_ROUND
ps_LINEJOIN_BEVEL