How php converts binary to floating-point number
This article mainly introduces "php how to convert binary to floating-point number". In daily operation, I believe many people have doubts about how php converts binary to floating-point number. Xiaobian consulted all kinds of data and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the question of "how php converts binary to floating-point number". Next, please follow the editor to study!
Method: 1, use bindec () to convert binary to decimal number, syntax "bindec (binary value)"; 2, use type conversion function floatval () or settype () to convert decimal number to floating point, syntax "floatval (number)" or "settype (number, float").
Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
The method of converting binary to floating-point number by php
In php, to convert a binary to a floating-point number, you need to first convert the binary to a decimal number.
Implementation method:
1. Use the bindec () function to convert binary numbers into decimal numbers.
The bindec ($binary_string) function converts the binary number $binary_string to a decimal number.
2. Use the type conversion function floatval () or settype () to convert decimal numbers to floating-point numbers.
Floatval () function
The floatval () function is a function that specifically converts other types to floating-point types, and it gets the floating-point value of a variable.
Echo "
The data types of decimal numbers are: "; var_dump ($num); $float= floatval ($num); echo" modified type: "; var_dump ($float)
Settype () function
Echo "
The original data type is: "; var_dump ($num); settype ($num," float "); echo" modified type: "; var_dump ($num)
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