Java software engineer php-11. function

Java programmers learn php-11. function publicStringjoin (Stringhead, Stringbody) {if (bodynull) bodyNobody; returnhead + body;} functionjoin (head, bodyNobody) {ret java programmer learn php-11. function

Public String join (String head, String body) {if (body = null) body = "Nobody"; return head + body ;}

Function join (head, body = 'nobody') {return head. body ;}

Differences:
1. php functions do not specify the return type in the method signature.
2. php functions do not specify the parameter type in the method signature.
3. php functions can set default values for parameters