Gajabwap Web In Hindi

Ye wo rights hote hai oops me jo decide krte hai ki kon se class ke object kon se class ke

member,properties etc ko access kar skte hai.in a simple words ye kisi be property ke visibility ke bare me decide karte hai.

Access specifiers 3 trah ke hote hai

Private

Protected

Public

Private-

private access specifies wo hote hai jo with in a class me he access ho skte hai inhe outsize se access ne kiya ja skta

Example-jesa apka mobile phone hai mobile phone personal hota hai ise hmare ilawa koi be use ne kr skta hai ise aap private man skte ho

Protected-

Protected vo hote hai jinhe class ke member aur us class se jo new class extend hoti hai us class ke member he access kr skte hai

Example-man lijiye apke pass ek car hai to us car ka use aap be kr skte ho or apki family ke members be apke bhai bhan children etc

Public-

Public accss specifiers vo hote hai jinhe koi be access kr skta hai means

Inhe inside,outside ya knhi se be koi be member access kr skta hai

Example-

App isme govt bus ka example le skte ho jinka use koi be kr skta hai andar se bahr se knhi se be

Class tv{

Public $model=’abc’;

Private $color=’red’;

Protected $volume=5;

}

Class plaza extends tv{

Public $size=20;

}

Class sony {

Public $cost=10;

}

$tv=new tv;

Echo $tv->model;

Jesa ki aap example me dekh rhe ho yanha $model public hai

Iska mtlb ye hai ki hm ise knhi se be access kr skte hai means class tv ke andar se be or plaza tv ke andar se be

Access or call kese krte hai-

Jesa ki aap example me dekh rhe ho hmne tv and plaza class bnane ke bad object bnaya hai $tv or uske bad echo ke dwara model ko call kiya hai.ise jb aap exexute kroge to apke pass model ki value abc a jayegi program run hone par kiunki ye public hai

Ab hm plaza tv ka object bnakar call krege $color ko

Plaza tv ka object kese bnaye

$plaza=new plaza;

Echo $plaza->color;

Bt ab hmare pass error ayega jo niche btaya hai mene.

Notice: Undefined property: plaza::$color in C:\wamp\www\static\mywapy.php on line 17

Kiunki $color tv class ka member hai

Or ye private hai mene apko btaya tha ki private access specifier ko inside class se he access kiya jata hai outside se nhi

Yanha hmne $plaza jo object bnaya hai wo plaza class ka hai isi karan hm $color properties ko access ne kar pa rhe hai

Bt agar hm $model ko access kr skte hai kiunki wo public hai.....$model ko hm $plaza ke objects and $tv ke objects dono se access kr skte hai kiunki $model public hai.

Bt hm $color ko sirf $tv ka object bnaker he access kr skte hai kiunki ye private hai .ise hm $plaza ka object bnakar access ne kar skte.or na he $sony ka object bnakar.

Ab bat ati hai $volume ki jo ki protected hai to ise hm $tv,$plaza ka object bnakar access kr skte hai bt hm ise

$sony k object bnakr access ne kr skte .because mene apko upar btaya tha ki protect properties ko sirf us class ke memer or usse extend hue class(means uski child class)ke member he us property ko access kr skte hai.

To dosto mujhe ummid hai apko access specifiers ki post achi lgi hogi gar apka koi be swal ho to plz comment kijiye

Thank you

Team Gajabwap Web In Hindi