Php switch
From w3cyberlearnings
Contents |
switch
switch is similar to if-else-if-else condition. When the switch case statement matches the value of the switch expression, then it begins to executed the statements and it will executes until it sees a break statement. Without a break statement, the case statement continues to match the switch expression until a case's statement list or when it's finally reach the default statement. The switch statement is faster and clearer than the If/ElseIf/Else statement.
Syntax
switch (expr) {
case value1 :
statement
break;
case value2 :
statement
break;
case value3 :
statement
break;
case value4 :
statement
break;
default:
statement
break;
}
Example 1
<?php
$i = 4;
switch ($i) {
case 1:
echo 'One';
break;
case 2:
echo 'Two';
break;
case 3:
echo 'Three';
break;
case 4:
echo 'Four';
break;
default:
echo 'default';
break;
}
?>
Output
Four
Example 2
<?php
$choice = 'beer';
switch ($choice) {
case 'beer':
case 'patron':
case 'bug light':
echo 'good choice';
break;
case 'mix drink':
echo 'nothing much';
break;
case 'cocacola':
echo 'just a drink';
break;
default:
echo 'water';
break;
}
?>
Output
good choice
Example 3
<?php
$person_op = array(
array('john', 'patron'),
array('mark', 'bug light'),
array('paul', 'mix drink'),
array('marry', 'cocacola'),
array('janny', 'do not drink')
);
foreach ($person_op as $person) {
echo $person[0];
echo ' select ';
echo u_option($person[1]);
echo '<br/>';
}
function u_option($choice) {
switch ($choice) {
case 'beer':
case 'patron':
case 'bug light':
echo 'good choice';
break;
case 'mix drink':
echo 'nothing much';
break;
case 'cocacola':
echo 'just a drink';
break;
default:
echo 'water';
break;
}
}
?>
Output
john select good choice mark select good choice paul select nothing much marry select just a drink janny select water
