Perl IF ELSE Conditional Control Function
What is If else Conditional Control function in Perl programming?
Explanation
The If else function in Perl is a conditional control statement, where a set of statement is executed based on a condition.
if (expr1)
{
Statement to be executed
}
else
(
Statement to be executed
)
In the above syntax a set of statement is executed if "expr1" is true, else a different set of statement is executed that is after the else statement.
#! C:programfilesperlbinperl
print "content-type: text/htmlnn";
$a = "HIOX";
$b = length($a);
if ($b== 1)
{
print "The string has one charactern";
}
else
{
print "The string has many charactersn";
} Result :
The string has many characters
In the above example the length of a string "HIOX" is checked and the appropriate result is displayed as the length of the string is not 1.
Syntax:
if (expr1)
{
Statement to be executed
}
else
(
Statement to be executed
)
In the above syntax a set of statement is executed if "expr1" is true, else a different set of statement is executed that is after the else statement.
Example :
#! C:programfilesperlbinperl
print "content-type: text/htmlnn";
$a = "HIOX";
$b = length($a);
if ($b== 1)
{
print "The string has one charactern";
}
else
{
print "The string has many charactersn";
}
The string has many characters
In the above example the length of a string "HIOX" is checked and the appropriate result is displayed as the length of the string is not 1.
