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所在平台: Udemy |
课程主页: https://www.udemy.com/course/php-conditional-statements-loops-functions-arrays/
课程评论：没有评论
**课程名称：PHP - 条件语句、循环、函数和数组** 本课程将深入讲解PHP编程中的核心概念，包括条件语句、循环、函数和数组。 **课程内容概述：** * **条件语句：** 学习如何利用条件语句（if, if...else, if...elseif...else, switch）来控制程序的执行流程，根据不同的条件执行不同的代码块。 * **循环：** 掌握如何使用循环（while, do...while, for, foreach）来重复执行特定的代码块，提高代码的效率和可读性。特别是foreach循环在处理数组时非常强大。 * **函数：** 理解函数在PHP中的重要性，学习如何使用PHP内置的超过1000个函数，以及如何创建自定义函数来组织和复用代码。函数不会自动执行，需要通过调用来触发。 * **数组：** 学习如何创建和使用数组来存储和管理多个值在单个变量中。 通过本课程的学习，您将能够熟练运用PHP的条件、循环、函数和数组来构建功能更强大、更灵活的Web应用程序。
Very often when you write code, you want to perform different actions for different conditions. You can use conditional statements in your code to do this.In PHP we have the following conditional statements:if statement - executes some code if one condition is trueif...else statement - executes some code if a condition is true and another code if that condition is falseif...elseif...else statement - executes different codes for more than two conditionsswitch statement - selects one of many blocks of code to be executed.The real power of PHP comes from its functions.PHP has more than 1000 built-in functions, and in addition you can create your own custom functions.A function is a block of statements that can be used repeatedly in a program.A function will not execute automatically when a page loads.A function will be executed by a call to the function.An array stores multiple values in one single variable:Often when you write code, you want the same block of code to run over and over again a certain number of times. So, instead of adding several almost equal code-lines in a script, we can use loops.Loops are used to execute the same block of code again and again, as long as a certain condition is true.In PHP, we have the following loop types:while - loops through a block of code as long as the specified condition is truedo...while - loops through a block of code once, and then repeats the loop as long as the specified condition is truefor - loops through a block of code a specified number of timesforeach - loops through a block of code for each element in an array
