Suppose the variable $var1 is set to 10 and the $var2 is set to the character var1, what's the value of $$var2?

944

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Explain me what is the importance of "method" attribute in a html form?

922

---

Tell me how do I check if a given variable is empty?

942

---

What is the use of isset() in php?

1031

---

Please explain is it possible to use com component in php?

993

---

Tell me what is the meaning of a final class and a final method?

1114

---

What does the array operator '===' means?

1038

---

How to redirect a page in php?

1012

---

How to find the length of a string?

953

---

How to create a session? How to set a value in session? How to remove data from a session?

966

---

How can we check the value of a given variable is alphanumeric?

978

---

Tell me how to find the position of the first occurrence of a substring in a string?

963

---

What does $_cookie means?

959

---

What is faster in php?

1053

---

What is the use of mysql_real_escape_string() function?

924

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