octdec()

(PHP 4, PHP 5, PHP 7)

八进制转换为十进制

说明

返回$octal_string参数所表示的八进制数的十进制等值。

参数

要转换的八进制的字符串

返回值

$octal_string的十进制的表示

更新日志

范例

Example #1octdec()例子

以上例程会输出：

63
45

参见

• decoct() 十进制转换为八进制
• bindec() 二进制转换为十进制
• hexdec() 十六进制转换为十进制
• base_convert() 在任意进制之间转换数字

Number is octal?
Simple and easy:

Thanks
[]'s

The 'S' flag for Unix file access rights is badly computed in the above sample.
If the corresponding 'x' bit (exec) is not set, and the 's' bit (setgid/setuid/sticky) is set, then the flag should not be displayed as and uppercase 'S', but as a lower case 's'. Also the sticky bit (mainly used for folders with public right access rights such as /tmp to protect against deletion by non owner) is badly named ("text"?).

Calling the sticky bit "text" is not erroneous: On UNIX back in 1974, it instructed the operating system to retain the text segment of the program in swap space after the process exited. This speeded subsequent executions by allowing the kernel to make a single operation of moving the program from swap to real memory.

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