[英]Why do I get an offset error for the code below?
<?php
$i = 0;
$array = array('name', 'email', 'address');
while ($array[$i]) {
echo "$array[$i]<br>";
$i++;
}
?>
PHP Notice: Undefined offset: 3 in /workspace/Main.php on line 6 PHP 注意:未定义的偏移量:3 in /workspace/Main.php on line 6
In while loop until your array has value.在 while 循环中,直到您的数组有价值。 use isset()
for it.使用isset()
。 change your while condition as below:更改您的 while 条件如下:
<?php
$i = 0;
$array = array('name', 'email', 'address');
while (isset($array[$i])) {
echo "$array[$i]<br>";
$i++;
}
?>
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