PHP中的分支及循环语句
作者：互联网
这次实践的都是PHP7的语法。
感觉是以前的5差别不是那么大，只是希望越来越快吧。
<?php
$looking = isset($_GET['title']) || isset($_GET['author'])
?>
<!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='UTF-8'>
<title>BookStore</title>
</head>
<body>
<?php
echo "Befor the conditional.<br/>";
if (2 > 2) {
echo "Inside the conditional.<br/>";
} elseif ( 2 == 2) {
echo "Print when 2 == 2.<br/>";
} elseif ( 2 < 2) {
echo "Not evaluted.<br/>";
} else {
echo "Inside the else.<br/>";
}
echo "After the conditional.<br/>";
$title = 'Harry Potter';
switch ($title) {
case 'Harry Potter':
echo 'Nice story. a bit too long.';
break;
case 'Load of the Rings':
echo 'A classic!';
break;
default:
echo 'Dunno that one.';
break;
}
echo "<br/>";
$i = 1;
while ($i < 4) {
echo $i . "<br/>";
$i++;
}
echo "<br/>";
$i = 1;
do {
echo $i . "<br/>";
$i++;
} while ($i < 0);
for ($i = 1; $i < 10; $i++) {
echo $i . "<br/>";
}
$names = ['Harry', 'Ron', 'Hermione'];
for ($i = 0; $i < count($names); $i++) {
echo $names[$i] . "<br/>";
}
foreach ($names as $name) {
echo $name . "<br/>";
}
foreach ($names as $key => $name) {
echo $key . ' -> ' . $name . "<br/>";
}
?>
</body>
</html>
输出：
Befor the conditional. Print when 2 == 2. After the conditional. Nice story. a bit too long. 1 2 3 1 1 2 3 4 5 6 7 8 9 Harry Ron Hermione Harry Ron Hermione 0 -> Harry 1 -> Ron 2 -> Hermione
标签：语句,++,Hermione,conditional,echo,names,Harry,PHP,分支 来源： https://www.cnblogs.com/aguncn/p/11120146.html