在PHP中,可以使用while循环来重复执行一段代码,直到指定的条件不再满足为止。while循环的条件设置在while关键字后的括号内。条件通常是一个布尔表达式,如果这个表达式的值为真,循环会继续执行;如果为假,循环会停止执行。例如: $count = 0; while ($count < 5) { echo "The count is: " . $count . ""; ...
The while loop syntax can also be written with the endwhile statement like thisExample Print $i as long as $i is less than 6: $i = 1; while ($i < 6): echo $i; $i++; endwhile; Try it Yourself » Step 10If you want the while loop count to 100, but only by each 10,...
在PHP中,do-while循环和while循环都是用于重复执行代码块的循环结构。它们之间的主要区别在于循环执行的时机。 do-while循环会先执行一次代码块,然后在检查条件是否满足之前继续执行循环。换句话说,do-while循环保证至少会执行一次代码块。 而while循环在每次循环开始之前都会先检查条件是否满足,如果条件不满足,则循环体...
for loop while loop do...while loop In the previous tutorial, we learned about for loop. In this tutorial, we will learn about while and do..while loop. while loop The syntax of the while loop is: while (testExpression) { // the body of the loop } How while loop works? The whil...
In the above example, we have used awhileloop to print the numbers from1to3. The loop runs as long as the conditionnumber <= 3isTrue. while Loop Syntax while condition: # body of while loop Here, Thewhileloop evaluatescondition, which is a boolean expression. ...
问While循环中的PHP语法错误EN函数源码： /** byte字节单位转换函数 * @param int $byte * @...
The basic loop structure in Python is while loop. Here is the syntax.Syntax:while (expression) : statement_1 statement_2 ...The while loop runs as long as the expression (condition) evaluates to True and execute the program block. The condition is checked every time at the beginning of...
问PHP如何通过while循环进行WhileloopENC#程序的三大结构 顺序结构：程序的入口都是Main函数，代码从上...
Introduction to PL/pgSQL while loop statement The while loop statement executes one or more statements as long as a specified condition is true. Here’s the basic syntax of a while loop statement: [ <> ] while condition loop statements; end loop; In this syntax, PostgreSQL evaluates ...
There is just one syntax fordo-whileloops: <?php $i=0; do { echo$i; } while ($i>0); ?> The above loop would run one time exactly, since after the first iteration, when truth expression is checked, it evaluates tofalse($iis not bigger than 0) and the loop execution ends. ...