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Lessons PHP Mathematical Functions Bookmark and Share
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The ceil() function rounds a fraction up to the next highest integer. Its syntax follows:

The floor() function rounds a fraction down to the next lowest integer. Its syntax follows:


We use this function to raise a number to the given exponent. Its syntax follows:

pow(number, exponent);

This function is used to generate a random value between two given numbers. Its syntax follows:

rand(min, max);

This function rounds a fraction to the next highest or the next lowest integer. Its syntax follows:


The sqrt() function returns the square root of the argument number. Its syntax follows:


decbin() and bindec()

The decbin() function converts decimal numbers to binary numbers and the bindec() function converts binary numbers to decimal numbers. Their syntax follows:


dechex() and hexdec()
The dechex() and hexdec() functions are used to convert decimal numbers to hexadecimal numbers and hexadecimal numbers to decimal numbers, respectively. Their syntax follows:


decoct() and octdec()
We use the decoct() and octdec() functions to convert decimal numbers to octal and the octal numbers to decimal numbers, respectively. The syntax of these functions follows:


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