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the syntax and semantics of the regular expressions sup - ported by pcre are described below.
though binary zero characters are supported in the subject string, they are not allowed in a pattern string because it is passed as a normal c string, terminated by zero. the escape sequence "\\x00" can be used in the pattern to represent a binary zero.
in addition, php' s developers have tried to clean up both php's syntax and semantics in version 3.0, and this has also caused some incompatibilities.
php 3.0은 처음부터 다시 씌여졌다. 그것은 2.0에 비해 훨씬더 튼튼하고 일관된 파서(명령해석)에 적합했다. 3.0은 이미 상당히 빨라지고, 더욱 적은 메모리를 사용한다. 하지만, 이들의 향상은 더 이상 구문과 함수의 호환성을 가능하게 하지 못했다.
to support enumeration of qualifiers, owners, and table types, the following special semantics for the qualifier, owner, name, and table_type are available:
to support enumeration of qualifiers, owners, and table types, the following special semantics for the qualifier, owner, name, and table_type are available:
