📄 14-7.php3
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<HTML>
<HEAD>
<TITLE>Figure 14-7</TITLE>
</HEAD>
<BODY>
<?
/*
** Define a function for comparing
** employees based on name
*/
function byName($left, $right)
{
return(strcmp($left[0], $right[0]));
}
/*
** Define a function for comparing
** employees based on title
*/
function byTitle($left, $right)
{
if($left[1] == $right[1])
{
return(0);
}
else
{
$title = array(
"President"=>1,
"CEO"=>2,
"Manager"=>3,
"Programmer"=>4
);
return($title[$left[1]] - $title[$right[1]]);
}
}
/*
** Define a function for comparing
** employees based on salary, then name
*/
function bySalary($left, $right)
{
if($left[2] == $right[2])
{
return(byName($left, $right));
}
else
{
return($right[2] - $left[2]);
}
}
/*
** Define function for printing array
*/
function PrintEmployees($input_array)
{
while(list($index, $value) = each($input_array))
{
printf("%s (%s) %.2f/Hour <BR>\n",
$value[0],
$value[1],
$value[2]);
}
}
/*
** Create some employees
** Name, Title, Wage
*/
$employee[] = array("Smith, John", "Programmer", 20);
$employee[] = array("Doe, Jane", "Programmer", 20);
$employee[] = array("Mann, Joe", "Manager", 35);
$employee[] = array("Smith, John", "CEO", 50);
$employee[] = array("Leeds, Al", "President", 100);
print("<B>Unsorted</B><BR>\n");
PrintEmployees($employee);
print("<BR>\n");
print("<B>Sorted by Name</B><BR>\n");
usort($employee, "byName");
PrintEmployees($employee);
print("<BR>\n");
print("<B>Sorted by Title</B><BR>\n");
usort($employee, "byTitle");
PrintEmployees($employee);
print("<BR>\n");
print("<B>Sorted by Salary</B><BR>\n");
usort($employee, "bySalary");
PrintEmployees($employee);
?>
</BODY>
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