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How to perform base conversion and padding in php: 1. Convert binary to octal through binoct(); 2. Convert binary to decimal through bindec(); 3. Convert binary to decimal through binhex() Hexadecimal; 4. Convert octal to binary through octbin(); 5. Convert octal to decimal through octdec(); 6. Convert octal to hexadecimal through octhex(), etc.
The operating environment of this tutorial: windows7 system, PHP8.1 version, DELL G3 computer
As a loser programmer, I don’t have rich experience , just typing code blindly, but one day, I will also become a technical expert. Today I learned several functions for converting between dots and bases
Common bases:
二进制 binary -----> bin 八进制 octal -----> oct 十进制 decimal -----> dec 十六进制 hexadecimal -----> hex
php provides functions for converting between several common bases
Convert binary to other bases
binoct();//转为八进制 bindec();//转为十进制 binhex();//转为十六进制
Convert octal to other bases
octbin();//转为二进制 octdec();//转为十进制 octhex();//转为十六进制
Convert decimal to other Base
decbin();//转为二进制 decoct();//转为八进制 dechex();转为十六进制
Convert hexadecimal to other bases
hexbin();转为二进制 hexoct();//转为八进制 hexdec();//转为十六进制
There are so many listed above, but I actually feel that they are of no use at all. For the above functions, you only need to remember bin , oct, dec, hex is enough. If you want to convert a base to b base, that is ab()
A simple example:
把二进制(bin)转为十进制(dec): bindec();
It’s that simple
But this may not meet our needs, so PHP provides us with a function that can truly convert whatever we want: base_convert();
base_convert() This function has three Parameter
string base_convert ( string $number , int $frombase , int $tobase )
Give an example:
$hexadecimal = '125458';//十进制 echo base_convert($hexadecimal, 10, 5);//转为五进制
Recommended learning: "PHP Video Tutorial"
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