預(yù)定義常量

下列常量由此擴展定義，且僅在此擴展編譯入 PHP 或在運行時動態(tài)載入時可用。

VAR_REPRESENTATION_SINGLE_LINE (int)

var_representation() flag indicating that newlines should not be used for whitespace in variable representations.

VAR_REPRESENTATION_UNESCAPED (int)

var_representation() flag indicating that strings should be encoded as single quoted strings with unescaped control characters.