复制代码 代码如下: 
＄ss_log_level = 0;
＄ss_log_filename = /tmp/ss－log;
＄ss_log_levels = array( 
none => 0, 
error => 1, 
info => 2, 
debug => 3 
);
//设置日志级别 
function ss_log_set_level (＄level = error) { 
global ＄ss_log_level; 
＄ss_log_level = ＄level; 
}
//记录日志
function ss_log (＄level, ＄message) { global ＄ss_log_level, ＄ss－log－filename;
if (＄ss_log_levels[＄ss_log_level] < ＄ss_log_levels[＄level]) { 
// 不显示log信息 
return false; 
}
＄fd = fopen(＄ss_log_filename, a＋); 
fputs(＄fd, ＄level. － [.ss_times*****p_pretty().] － .＄message.n); 
fclose(＄fd); 
return true; 
}
//清空日志 
function ss_log_reset () { 
global ＄ss_log_filename; 
@unlink(＄ss_log_filename); 
}
//调用示例 
复制代码 代码如下: 
ss_log_set_level(info);
ss_log(error, testing level error); 
ss_log(info, testing level info); 
ss_log(debug, testing level debug);
ss_log_reset();