PHP/Operator/Conditional Operator
Содержание
Conditional Operator
<source lang="html4strict">
<?php
function is_odd()
{
global $num;
echo("$num is an odd number");
}
function is_even()
{
global $num;
echo("$num is an even number");
}
?> <html>
<head> <title>Conditional Operator</title> </head> <body> <?php $num = 57; ( $num % 2 != 0 ) ? is_odd() : is_even(); $num = 44; ( $num % 2 != 0 ) ? is_odd() : is_even(); ?> </body>
</html>
</source>
Conditional Statements
<source lang="html4strict">
<?php
$Age = 20;
if ($Age < 18) {
print "You"re young - enjoy it!\n";
} else {
print "You"re not under 18\n";
}
if ($Age >= 18 && $Age < 50) {
print "You"re in the prime of your life\n";
} else {
print "You"re not in the prime of your life\n";
}
if ($Age >= 50) {
print "You can retire soon - hurrah!\n";
} else {
print "You cannot retire soon :( ";
}
?>
</source>
Less-than and greater-than
<source lang="html4strict">
<? $age = 8; if ($age > 17) {
print "> 17";
} if ($age >= 65) {
print ">= 65";
} $kelvin_temp = 0; if ($kelvin_temp < 20.3) {
print "< 20.3";
} ?>
</source>
The trinary operator
<source lang="html4strict">
<? $first_num =2; $second_num = 1; $max_num = $first_num > $second_num ? $first_num : $second_num; echo($max_num); ?>
</source>
