2. switch语句的多个判断条件:switch语句用于根据不同的条件执行相应的代码块,可以一次性对多个条件进行判断。例如:```phpswitch ($num) { case 1: // $num等于1时执行的代码 break; case 2: // $num等于2时执行的代码 break; case 3: // $num等于3时执行的代码 break; default: // 所有条件都不满...
为避免错误,理解switch是怎样执行的非常重要。switch语句一行接一行地执行(实际上是语句接语句)。开始时没有代码被执行。仅当一个case语句中的值和switch表达式的值匹配时 PHP 才开始执行语句,直到switch的程序段结束或者遇到第一个break语句为止。如果不在 case 的语句段最后写上break的话,PHP 将继续执行下一个 cas...
Stringvariables can also be checked with multiple string values (case values) by using theswitchstatement. Example This example demonstrates the PHPswitchstatement with strings. <?php$color="Red";switch($color){case"Red":echo"Your favorite color is red.";break;case"Blue":echo"Your favorite col...
If you want multiple cases to use the same code block, you can specify the cases like this:Example More than one case for each code block: $d = 3; switch ($d) { case 1: case 2: case 3: case 4: case 5: echo "The weeks feels so long!"; break; case 6: case 0: echo "...
You can club more than one cases to simulate multiple logical expressions combined with the or operator. Open Compiler <?php $x=10; switch ($x) { case 0: case 1: case 2: echo "x between 0 and 2 \n"; break; default: echo "x is less than 0 or greater than 2"; } ?> ...
a 函数说明 abs 绝对值 acos 反余弦 acosh 反双曲余弦 addcslashes 以 C 语言风格使用反斜线转义字符串中的字符 addslashes 使用反斜线引用字符串 apache_child_terminate 在本次请求结束后终止 apache 子进程 apache_geten
Fixed array key as hash to string (case insensitive) comparison typo for the second operand buffer size (albeit unused for now). XML: Fixed bug GH-13517 (Multiple test failures when building with --with-expat).Version 8.3.3 15 Feb 2024 Core: Fixed timer leak in zend-max-execution-...
If you have many conditions, PHP switch statements are a more efficient way of doing this. The server will execute a PHP switch statement quicker than multiple "elseif"s. Also, there's actually less code for the programmer to write.
To switch to the TinyMCE v4 library, you must change the cms/wysiwyg/editor value in the core_config_data database table to mage/adminhtml/wysiwyg/tiny_mce/tinymce4Adapter. This change only impacts extensions that depend on the TinyMCE v3 library for WYSIWYG functionality in the Admin. ...
1. Switch Between Multiple PHP Versions 1.1. Switch from PHP 7.x to PHP 5.x 1.2. Switch from PHP 5.x to PHP 7.x Conclusion Introduction Sometimes, the most recent version of an installed package might not work as you expected. Your application may not be compatible with the updated pac...