COMPUTER PROGRAMMING FUNDAMENTALS
WHAT IS PROGRAMMING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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variable
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string
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integer
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array
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Detailed explanation-1: -You can use the PHP strpos() function to check whether a string contains a specific word or not. The strpos() function returns the position of the first occurrence of a substring in a string. If the substring is not found it returns false .
Detailed explanation-2: -To find a word in the string, we are using indexOf() and contains() methods of String class. The indexOf() method is used to find an index of the specified substring in the present string. It returns a positive integer as an index if substring found else returns-1.
Detailed explanation-3: -A variable-length string can contain up to approximately 2 billion (2^31) characters. A fixed-length string can contain 1 to approximately 64 K (2^16) characters.