Tell me how can we determine whether a php variable is an instantiated object of a certain class?

960

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What is the actually used php version?

1023

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What are the functions to be used to get the image's properties (size, width and height)?

940

---

What are the two main string operators?

998

---

How we can retrieve the data in the result set of mysql using php?

1078

---

What does $_env means?

896

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Which cryptographic extension provide generation and verification of digital signatures?

900

---

Tell us how to redirect a page in php?

932

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How can I display text with a php script?

954

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Tell me how the result set of mysql be handled in php?

931

---

Whether it is possible to share a single instance of a memcache between multiple php projects?

945

---

How to delete a file from the system?

985

---

Explain what is the difference between mysql_fetch_array() and mysql_fetch_assoc()?

850

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Explain me what is the use of header() function in php?

991

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Tell me what is the use of explode() function?

928

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