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

1115

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

1042

---

How to redirect a page in php?

1017

---

How to find the length of a string?

956

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

968

---

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

983

---

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

963

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What does $_cookie means?

960

---

What is faster in php?

1058

---

What is the use of mysql_real_escape_string() function?

930

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Explain which cryptographic extension provide generation and verification of digital signatures?

1004

---

How do I escape data before storing it into the database?

972

---

Explain me how failures in execution are handled with include() and require() functions?

1024

---

How is it possible to return a value from a function?

1010

---

How to update memcached when you make changes to php?

967

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