PHP:
### The while Loop
##############################################################################################
<html>
<body>
<?php
$i=1;
while($i<=5)
{
echo "The number is " . $i . "<br />";
$i++;
}
?>
</body>
</html>
### The do...while Statement
##############################################################################################
<html>
<body>
<?php
$i=1;
do
{
$i++;
echo "The number is " . $i . "<br />";
}
while ($i<=5);
?>
</body>
</html>
### The for Loop
##############################################################################################
<html>
<body>
<?php
for ($i=1; $i<=5; $i++)
{
echo "The number is " . $i . "<br />";
}
?>
</body>
</html>
### The foreach Loop
##############################################################################################
<html>
<body>
<?php
$x=array("one","two","three");
foreach ($x as $value)
{
echo $value . "<br />";
}
?>
</body>
</html>
PHP:
### Create a PHP Function
##############################################################################################
<html>
<body>
<?php
function writeName()
{
echo "Kai Jim Refsnes";
}
echo "My name is ";
writeName();
?>
</body>
</html>
### PHP Functions - Adding parameters
##############################################################################################
<html>
<body>
<?php
function writeName($fname)
{
echo $fname . " Refsnes.<br />";
}
echo "My name is ";
writeName("Kai Jim");
echo "My sister's name is ";
writeName("Hege");
echo "My brother's name is ";
writeName("Stale");
function writeName($fname,$punctuation)
{
echo $fname . " Refsnes" . $punctuation . "<br />";
}
echo "My name is ";
writeName("Kai Jim",".");
echo "My sister's name is ";
writeName("Hege","!");
echo "My brother's name is ";
writeName("St?le","?");
?>
</body>
</html>
### PHP Functions - Return values
##############################################################################################
<html>
<body>
<?php
function add($x,$y)
{
$total=$x+$y;
return $total;
}
echo "1 + 16 = " . add(1,16);
?>
</body>
</html>
PHP:
# add the parameters passing by reference
<html>
<body>
<?php
/*
* reference operator in the function declaration.
*/
function div1($dividee,$divider, &$quotient, &$remainder)
{
$quotient = (int)($dividee / $divider);
$remainder=$dividee % $divider;
return $dividee / $divider;
}
$result = div1(3,5, $quot, $rem);
echo "3 / 5 = " . $result . " : quotient=" . $quot . " ; remainder=" . $rem;
echo "<br />";
/*
* reference operator when calling the function
*/
function div2($dividee,$divider, $quotient, $remainder)
{
$quotient = (int)($dividee / $divider);
$remainder=$dividee % $divider;
return $dividee / $divider;
}
$result = div2(3,5, &$quot, &$rem);
echo "3 / 5 = " . $result . " : quotient=" . $quot . " ; remainder=" . $rem;
?>
</body>
</html>
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