PHP extension compilation exception

PHP extension compilation error sqlite3.cext \ sqlite3 \ sqlite3.c (264) & nbsp;: & nbsp; warning & nbsp; C4244: & nbsp; "=": & nbsp; converting from "sqlite3_int64" to "long" may cause PHP extension compilation errors.
Sqlite3.cext \ sqlite3 \ sqlite3.c (264): warning C4244: "=": converts "sqlite3_int64" to "long", and may lose data ext \ sqlite3 \ sqlite3.c (511 ): warning C4013: "sqlite3_key" is not defined; suppose the external return intext \ sqlite3 \ sqlite3.c (533): warning C4013: "Unknown" is not defined; suppose the external return intext \ sqlite3 \ sqlite3.c (627 ): warning C4244: "=": converting from "sqlite3_int64" to "long" may cause data loss sqlite3.cext \ sqlite3 \ libsqlite \ sqlite3.c (87981): error C2065: "sqlite3_key ": undeclared identifier ext \ sqlite3 \ libsqlite \ sqlite3.c (87981): error C2099: the initial value is not a constant ext \ sqlite3 \ libsqlite \ sqlite3.c (87982): error C2065: "sqlite3_rekey": undeclared identifier ext \ sqlite3 \ libsqlite \ sqlite3.c (87982): error C2099: the initial value is not a constant NMAKE: fatal error U1077: "" C: \ Program Files \ Microsoft Visual Studio 9.0 \ VC \ BIN \ cl.exe "": return code "0x2" Stop.
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You get the error message to the VC layout (http://bbs.csdn.net/forums/VC) to ask, see what they say