php base_convert()进制数字转换函数
base_convert() 函数在任意进制之间转换数字。
语法
base_convert(number,frombase,tobase)参数 描述
number 必需。原始值。
frombase 必需。数字原来的进制。
tobase 必需。要转换的进制。
*/
$hexadecimal='a37334';
echo base_convert($hexadecimal,16,2); //转换为二进制输出101000110111001100110100
echo "
";
$number="123";
echo base_convert($number,10,2); //转换为二进制输出1111011
echo "
";
echo base_convert($number,10,8); //转换为八进制输出173
echo "
";
echo base_convert($number,10,16); //转换为十六进制输出7b
$number2="100000101";
echo "
";
echo base_convert($number2,2,10); //转换为十进制输出261
echo "
";
echo base_convert($number2,2,8); //转换为八进制输出405
/*
说明
返回一个字符串,包含 number 以 tobase 进制的表示。number 本身的进制由 frombase 指定。frombase 和 tobase 都只能在 2 和 36 之间(包括 2 和 36)。高于十进制的数字用字母 a-z 表示,例如 a 表示 10,b 表示 11 以及 z 表示 35。

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