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control.php
    strutture di controllo
<?php 
if ( condizione ) { 
    codice 1;
} else { 
    codice 2;
} 
?>
<?php 
if ( condizione ) { 
    codice 1;
} elseif  ( condizione ) { 
    codice 2;
} else { 
    codice default;
} 
?>
  • <? if (strstr($HTTP_USER_AGENT,"MSIE")) { ?>
    You are using Internet Explorer
    <? } else { ?> You are not using Internet Explorer <? } ?>

    You are using Internet Explorer You are not using Internet Explorer
  • <? if ($last_name == ""){$last_name = '%';}?>
  • <? if (!$last_name){$last_name = '%';}?>


<?php 
while ( condizione ) { 
    codice;
} 
?>
<?php 
do
{ 
    codice;
} 
while ( condizione )  
?>
  • $i = 5; while ($i < 8) { print "Oggi ho mangiato $i cioccolatini.<br>"; $i++; }


<?php 
for ( espr1, espr2, espr3 ) { 
    codice
} 
?>

  • for ($i = 5; $i < 8; $i++) { print "Oggi ho mangiato $i cioccolatini.<br>"; }
    "; } ?>


<?php 
switch ( espressione ) { 
case 1:
    action1;
    break;
case 2:
    action2;
    break;
default:
    defaultaction;
    break;
} 
?>
  • ...