java与php的memcached的数据读取问题

一直用JAVA读写memcached没出问题 
今天与PHP系统对接的时候，一直取不到PHP存储的元素，但是PHP又取得到JAVA这边存储的元素。 
最后装了MemAdmin，查看了一下，PHP存储的元素的Flags全是0，而java使用类库存储的字符型的Flags是32。让PHP修改下存储的Flags后问题解决。 
附带下几种类型的Flags： 

Java代码  

public static final int MARKER_BYTE             = 1;  
public static final int MARKER_BOOLEAN          = 8192;  
public static final int MARKER_INTEGER          = 4;  
public static final int MARKER_LONG             = 16384;  
public static final int MARKER_CHARACTER        = 16;  
public static final int MARKER_STRING           = 32;  
public static final int MARKER_STRINGBUFFER     = 64;  
public static final int MARKER_FLOAT            = 128;  
public static final int MARKER_SHORT            = 256;  
public static final int MARKER_DOUBLE           = 512;  
public static final int MARKER_DATE             = 1024;  
public static final int MARKER_STRINGBUILDER    = 2048;  
public static final int MARKER_BYTEARR          = 4096;