when I use the php-rf is_array command under the command line, I can print out the relevant is_array information, but when I use the same way to get the relevant information about the isset function and the empty function, it shows that the isset function does not exist and the empty function does not exist;
C:\Users\longxiangde>php --rf is_array
Function [ <internal:standard> function is_array ] {
- Parameters [1] {
Parameter -sharp0 [ <required> $var ]
}
}
C:\Users\longxiangde>php --rf empty
Exception: Function empty() does not exist
C:\Users\longxiangde>php --rf isset
Exception: Function isset() does not exist
excuse me, what kind of functions can php-rf print out? Thank you!