A null byte ("") is not equivalent to the NULL constant of PHP.

In the php manual, "a NULL byte (& amp; quot;) is not equivalent to the NULL constant of PHP ." I don't quite understand. Where is the difference? In the php manual, "a NULL byte (" \ 0 ") is not equivalent to the NULL constant of PHP ."

I don't quite understand. Where is the difference?

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In the php manual, "a NULL byte (" \ 0 ") is not equivalent to the NULL constant of PHP ."

I don't quite understand. Where is the difference?

 
'\ 0' is not NULL, It is NUL
Php does not have the character type concept, so the two are different.
Deep understanding is that the variables in php are usedStruct zvalTo achieve