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

951

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

929

---

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

953

---

What is the use of isset() in php?

1039

---

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

999

---

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

1130

---

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

1050

---

How to redirect a page in php?

1022

---

How to find the length of a string?

967

---

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

976

---

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

990

---

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

969

---

What does $_cookie means?

968

---

What is faster in php?

1058

---

What is the use of mysql_real_escape_string() function?

936

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