Explain me what are the differences between mysql_fetch_array(), mysql_fetch_object(), mysql_fetch_row()?

1064

---

Explain what does the unlink() function means?

1052

---

What is the difference between $var and $$var?

1035

---

Explain me what is the meaning of a persistent cookie?

980

---

Tell me what is the importance of "action" attribute in a html form?

1061

---

What is use of in_array() function in php?

1047

---

How to strip whitespace (or other characters) from the beginning and end of a string?

857

---

Tell me how do you execute a php script from the command line?

972

---

Tell me what are the encryption techniques in php?

901

---

Tell me what does the initials of php stand for?

939

---

Tell me what are the correct and the most two common way to start and finish a php block of code?

931

---

What is the use of "echo" in php?

932

---

What is the use of 'print' in php?

980

---

Do you know what is the use of the function 'imagetypes()'?

930

---

Tell me what the difference between the 'bitwise and' operator and the 'logical and' operator?

925

---