循環(huán)語句與條件語句

As mentioned earlier, the looping statement is executing a particular code as long as a condition is true. On the order hand, conditional statements are statements that can only be executed based on the fulfillment of a particular condition(s).

如前所述，只要條件為真， 循環(huán)語句就會執(zhí)行特定的代碼。 在順序方面， 條件語句是只能基于滿足特定條件才能執(zhí)行的語句。

Example:

例：

We have 3 phones and 3 laptops altogether 6 gadgets. Let's write a basic program that displays "phone" 3 times and "laptop" 3 times assuming the phones are labeled 1 to 3 and the laptops 4 to 6.

我們有3部手機(jī)和3臺筆記本電腦，共6個小工具。 讓我們編寫一個基本程序，假設(shè)手機(jī)分別標(biāo)記為1到3以及筆記本電腦4到6，它會顯示3次“手機(jī)”和3次“筆記本電腦”。

We are going to see how we can use the conditional statements and the loop statements to accomplish this. Since we have had a mastery of the syntaxes form the previous articles we will go straight to their implementation.

我們將看到如何使用條件語句和循環(huán)語句來完成此任務(wù)。 由于我們已經(jīng)掌握了前幾篇文章中的語法，因此我們將直接介紹它們的實現(xiàn)。

使用for循環(huán)和if ... else (Using for loop and if...else)

<?php for ($l = 1;$l <= 6;$l++) {if ($l <= 3) {echo "<br>phone";} else {echo "<br>laptop";} } ?>

Output

輸出量

phone phone phone laptop laptop laptop

使用while循環(huán)以及if ... else (Using while loop and if...else)

<?php $x = 1; while ($x <= 6) {if ($x <= 3) {echo "<br>phone";} else {echo "<br>laptop";}$x++; } ?>

Output

輸出量

phone phone phone laptop laptop laptop

使用do while循環(huán)和if ... else (Using do while loop and if...else)

<?php $x = 1; do {if ($x <= 3) {echo "<br>phone";} else {echo "<br>laptop";}$x++; } while ($x <= 6); ?>

Output

輸出量

phone phone phone laptop laptop laptop

翻譯自: https://www.includehelp.com/php/mixing-conditional-statements-and-loops.aspx

循環(huán)語句與條件語句

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