Последни търсения:
control-structures functions ,
include functions ,
variable functions ,
post functions
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continue (продължи) се използва в циклични структури, за да се пропусне остатъка от текущата итерация и изпълнението да продължи в проверката на условието и след това в началото на следващата итерация.
Забележка: Забележете, че в PHP конструкцията switch се смята за циклична структура в контекста на continue.
continue приема незадължителен цифров параметър, който указва до края на колко нива на заграждащи цикли трябва да пропусне.
<?php
while (list ($key, $value) = each ($arr)) {
if (!($key % 2)) { // пропускане на нечетните членове
continue;
}
do_something_odd ($value);
}
$i = 0;
while ($i++ < 5) {
echo "Външен<br />\n";
while (1) {
echo " Среден<br />\n";
while (1) {
echo " Вътрешен<br />\n";
continue 3;
}
echo "Това никога няма да бъде изведено.<br />\n";
}
echo "Нито пък това.<br />\n";
}
?>
Пропускането на точката и запетаята след continue може да доведе до объркване. Ето пример за това какво не трябва да правите.
<?php
for ($i = 0; $i < 5; ++$i) {
if ($i == 2)
continue
print "$i\n";
}
?>
Някои ще очакват резултатът да бъде:
0 1 3 4
но скриптът ще изведе:
2
защото връщаната стойност от извикването на print() е int(1), а тя ще изглежда като незадължителния цифров параметър, споменат по-горе.
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