How to replace a substring in a given string in php?

421

Is php a web server?

415

How to turn on the session support?

449

How to assigning a new character in a string using php?

428

What is the difference between session_unregister() and session_unset()?

409

How do you trim spaces in excel?

403

What is difference between echo and print_r in php?

389

What is session in c#?

401

Is not null in php?

411

What is constructors and destructors?

420

What is $_ server request_method == post?

413

What is xss in php?

433

How to send email using php script?

401

How many types of inheritances used in php and how we achieve it.

376

What type of operation is needed when passing values through a form or an url?

405