Where are the persistent cookies stored on your computer?

943

---

How to avoid the undefined index error?

946

---

How to pass an argument to a function?

1113

---

Is it more secure to use cookies to transfer session ids?

910

---

How to test if a variable is an array?

1052

---

How to convert a character to an ascii value?

1024

---

What is the scope of a variable defined outside a function?

977

---

When viewing an html page in a browser, the browser often keeps this page in its cache. What can be possible advantages/disadvantages of page caching? How can you prevent caching of a certain page (please give several alternate solutions)?

931

---

How values in arrays are indexed?

1011

---

What are form input html tags?

916

---

How to join multiple strings into a single string?

906

---

How to invoke a user function?

933

---

How to take a substring from a given string?

952

---

What is file upload?

1022

---

How to create a table to store files?

1015

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