What is singleton design pattern in php?
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Is key exist in array php?
Which of the data type is compound datatype supported by PHP?
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Why do we use polymorphism in php?
Write a program in php to reverse a number?
Explain me what is the meaning of a persistent cookie?
how to register website in internet
What is the difference between single quoted string and double quoted string?
What is alias in php?
What does type casting mean in php? Explain with an example?
How do you access a get requests url parameter with php?
Suppose we receive a form submitted by a post to subscribe to a newsletter. This form has only one field, an input text field named email. How would we validate whether the field is empty? Print a message "the email cannot be empty" in this case?