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<?php
class Colors {
// An array where the colors are stored
var $colors;
function Colors() {
$this->colors = array ('red','green','blue');
}
// This method Iterates over the colors array
function fetch() {
// Use the each() function to get the current value and step forward
$color = each ( $this->colors );
// If $color wasn't false...
if ( $color ) {
// return the value
return $color['value'];
// $color is false (reached the end of the array)...
} else {
// Reset the colors array
reset ( $this->colors );
// Return false
return false;
}
}
}
// Instantiate the Colors class
$colors = new Colors();
// Iterate over it twice using a while loop and the fetch() method
echo ( '<b>First iteration:</b><br />' );
while ( $color = $colors->fetch() ) {
echo ( $color.'<br />' );
}
echo ( '<b>Second iteration:</b><br />' );
while ( $color = $colors->fetch() ) {
echo ( $color.'<br />' );
}
?>
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