Definition: The Bindec () PHP function is used to convert a binary string into a decimal. In Bindec (x) the input x would be the binary string. If you aren't sure if a string is a binary number you can check it using the Isbinary () function.
Examples:
<?php
echo(bindec(10) . "<br />");
echo(bindec(1001010) . "<br />");
echo(bindec(111) . "<br />");
echo(-bindec(1011101) . "<br />");
?>
This will return:
2
74
7
-93
