How to realize decimal rounding in php

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Methods: 1. Use intval() function, syntax "intval($num)";2. Use ceiling () function, syntax "ceiling ($num)";3. Use floor() function, syntax "floor($num)";4. Use round() function, syntax "round($num)".

Operating environment of this tutorial: Windows 7 system, PHP 7.1 version, DELL G3 computer

Php decimal rounding method

Use intval() function

The intval() function is used to obtain the integer value of a variable; it is often used to perform data type conversion, converting a string or floating point variable to an integer type.

2. Use the ceiling () function--round up, add 1 to the integer part if there are decimals

3. Use floor() function--round down

4. Use round() function-rounding

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