How to call another class function in PHP

Question

My question is similar to Call function in function from another class PHP, but its answer does not work for me.

Basically here is what I want to do.

in 'a.php', I defined class A.

class A{ function ab(){} function cd(){} function ef(){} ... }

in 'b.php', I would like to define class B that can call the function in class A. Here is what I put, but it seems not work.

class B{ function xy(){ require 'a.php'; $a = new A(); $this->x = $a->ab(); $this->y = $a->cd(); return $a->ef(); } }

Can anyone point me to the right direction? Thanks

========

UPDATE: to make my question more clear I made another example.

class Person{ function firstName(){return $this->firstName;} function lastName() {return $this->lastName;} function address() {return $this->address;} ... } class Car{ function ownerInfo(){ $owner = array(); require 'person.php'; $p = new Person($this->ownerID); $owner['firstname'] = $p->firstName(); $owner['lastname'] = $p->lastName(); $owner['address'] = $p->address(); //I am sure the data is there, but it returns nothing here return $owner; } }

Inheritance?....Just extend class B to class A and you can use those methods defined in class A — asprin
– asprin, Commented Jan 29, 2013 at 6:43
not sure for php but i know that in c++ you include (require) the file in the header (well the beginning of the file, or before the class B deceleration) — Dejan Biljecki
– Dejan Biljecki, Commented Jan 29, 2013 at 6:44
actually A and B are different model so I don't want to use "class B extends A". Most the other functions in A and B are not related. — CoolMoon
– CoolMoon, Commented Jan 29, 2013 at 6:49
I tried to put the require statement in the beginning of the file but it does not work either. — CoolMoon
– CoolMoon, Commented Jan 29, 2013 at 6:49

GautamD31 · Accepted Answer · 2013-01-29 06:46:13Z

1

Try like this

class B extends A{ function xy(){ require 'a.php'; $a = new A(); $this->x = $a->ab(); $this->y = $a->cd(); return $a->ef(); } }

answered Jan 29, 2013 at 6:46

GautamD31

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4 Comments

GautamD31 Over a year ago

Ofcourse its not good but we can use like this right because it may extract a.php file whenever this class B is used,orelse it may decrese to load a.php which unvaluable..??

CoolMoon Over a year ago

is there any other way to do that? actually I already put "class A extends C" and "class B extends D"

Ja͢ck Over a year ago

Adding the extends A does nothing. It only adds to code confusion.

GautamD31 Over a year ago

@coolmoon you can do like this and there is NP if you extend others to others

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