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This article mainly introduces "how to use the function from php to hexadecimal". In daily operation, I believe many people have doubts about how to use the function from php to hexadecimal. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubt about how to use the function from php to hexadecimal. Next, please follow the editor to study!

Php to hexadecimal functions are: 1, bin2hex (), you can convert the string of ASCII characters to hexadecimal values; 2, dechex (), you can convert decimal numbers to hexadecimal numbers, 3, base_convert (), you can convert numbers between arbitrary digits.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php to hexadecimal function

1. Bin2hex () function

The bin2hex () function converts a string of ASCII characters to a hexadecimal value.

Syntax: bin2hex (string)

Return value: returns the hexadecimal value of the string to be converted.

Example:

2. Dechex () function

The dechex () function converts decimal numbers to hexadecimal numbers.

Syntax: dechex (number)

Return value: a string containing the hexadecimal number of the decimal value.

Example:

Description:

Hexdec () converts a hex string to a decimal number. The maximum value that can be converted is 7fffffff, which is 2147483647 in decimal system. Starting with PHP 4.1.0, this function can handle large numbers, in which case it returns the float type.

Hexdec () replaces all non-hexadecimal characters encountered with 0. In this way, all the zeros on the left are ignored, but the zeros on the right are accounted for.

3. Base_convert () function

The base_convert () function converts numbers between arbitrary digits.

Syntax: base_convert (number,frombase,tobase)

Parameter description number is required. Specify the number to be converted. Frombase is required. Specify the original base of the number. Between 2 and 36 (inclusive). Numbers higher than decimal are denoted by the letter amurz, for example, a for 10, b for 11, and z for 35. Tobase is required. Specify the base to be converted. Between 2 and 36 (inclusive). Numbers higher than decimal are denoted by the letter amurz, for example, a for 10, b for 11, and z for 35.

When the value of the parameter tobase is 16:00, you can convert other digits to hexadecimal numbers.

Example:

At this point, on the "php to hexadecimal function how to use" the end of the study, I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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