PHP Control Statements

if, elseif, else

if ( )

{

}

elseif ( )

{

}

else

{

}

switch

switch ( )

{

case condition1

        break;

case condition2

   break;

}

while

Syntax:

while (condition)

{

}

do

do

{

} while (condition)

for

Example use of the for statement:

<?php

for ( $n = 1; $n < 10; $n++)

{

   echo "$n<BR>";

}

?>

foreach

Versions of PHP prior to version 4 do not support the foreach statement. The following code should list the contents of the array.

<?php

$tree = array("trunk", "branches", "leaves");

foreach ($tree as $part)

{

  echo "Tree part: $part ";

}

?>

break

Is used to end the execution of a for, switch, or while statement

continue

This statement is used to skip the rest of the current loop.

<?php

for ( $n = 1; $n < 10; $n++)

{

   echo "$n<BR>";

        if ($n == 5) continue;

  echo "This statement is skipped when $n = 5.<BR>";

}

?>

The continue statement can be given an optional parameter such as "continue 2" telling it how many levels of loops to skip