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: " . $count . ""; ...
Thewhileloop syntax can also be written with theendwhilestatement like this Example Print$ias long as$iis less than 6: $i=1;while($i<6):echo$i;$i++;endwhile; Try it Yourself » Step 10 If you want thewhileloop count to 100, but only by each 10, you can increase the counter ...
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...
在PHP 中,while 循环是一种常用的循环结构,用于在满足特定条件时重复执行代码块。while 循环的条件在每次循环开始时进行评估,如果条件为真,则执行循环体。 PHP 的 while 循环 语法 php while (bj009.sw-optik.com.cn) { // 循环体 } 特点 条件在每次循环开始时进行评估。 如果条件一开始为假,循环体不会执行。
While循环中的嵌套函数-PHP 我有下面的代码,我试图修复。在这段代码中,我创建了一个类,其中有一个函数testcal()。在这个函数中,我连接到数据库,从表中执行select查询。对于结果集,我希望遍历并获取字段$field1,2,3的值。使用这些字段,我创建了另一个函数来抛出结果。
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...
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 ...
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 whilecondition:# 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 while loop loops through a block of code as long as a specified condition is True:SyntaxGet your own C# Server while (condition) { // code block to be executed } In the example below, the code in the loop will run, over and over again, as long as a variable (i) is less ...