What is the use of isset() in php?

997

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

970

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

1076

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

993

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How to redirect a page in php?

989

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How to find the length of a string?

932

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

945

---

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

952

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

931

---

What does $_cookie means?

936

---

What is faster in php?

1022

---

What is the use of mysql_real_escape_string() function?

902

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

971

---

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

941

---

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

988

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