I’m working on an app, and I’m stuck.
I want to do foreach inside switch like this:
<?PHP
$gtid = $_GET['id'];
// ID(key) => value
$dbs = array(
"ZTI10" => "Example1",
"O1JTQ" => "Example2",
"4V1OR" => "Example3"
);
switch($gtid){
foreach ($dbs as $key => $value) {
case $key:
echo "On ID $key is $value";
break;
}
}
?>
Is that even possible? Or is there any other way to do what I want here?
Thanks in advance.
if doesn't even need a loop
if (isset($dbs[$_GET['id']])) {
echo sprintf('On ID %s is %s', $_GET['id'], $dbs[$_GET['id']]);
}
echo sprintf() is an "antipattern". There is absolutely no reason that anyone should ever write echo sprintf() in any code for any reason -- it should be printf() without echo every time.No, you can't do that. Use a simple if statement inside your foreach loop instead:
foreach ($dbs as $key => $value) {
if ($gtid == $key) {
echo "On ID $key is $value";
break;
}
}
The break here causes the execution to immediately jump out of the foreach loop, so it won't evaluate any other elements of the array.
No.
Easy way to do this:
<?php
$gtid = $_GET['id'];
$dbs = array(
"ZTI10" => "Example1",
"O1JTQ" => "Example2",
"4V1OR" => "Example3"
);
if ( isset($dbs[$gtid]) ) {
echo "On ID $gtid is $dbs[$gtid]";
} else {
// default
}
?>
