在PHP中,可以使用内置的strtolower()和strtoupper()函数来实现字符串的大小写转换。 转换为小写: <?php $str = "ConVert Me tO LoWErCasE"; $lowercase_str = strtolower($str); echo $lowercase_str; // 输出:convert me to lowercase ?> 复制代码 转换为大写: <?php $str = "ConVert Me tO UPPER...
"; $uppercaseString = strtoupper($string); echo $uppercaseString; // 输出: HELLO, WORLD! ?> 大写转小写 与将小写字母转为大写相反,要将字符串中的所有大写字母转换为小写字母,可以使用PHP的另一个内置函数strtolower()。 以下是一个示例代码: <?php $string = "HELLO, WORLD!"; $lowercaseString = ...
$filename = “example.jpg”; $lowercaseFilename = strtolower($filename); // 转换为小写 $uppercaseFilename = strtoupper($filename); // 转换为大写 echo “原文件名: “.$filename.” “; echo “转换为小写: “.$lowercaseFilename.” “; echo “转换为大写: “.$uppercaseFilename.” “; ...
Is optimized for italian language (leave lowercase articles, prepositions, conjunctions) but easily changeable. Notice che "'s"!! for example "hotel 2000's" becames "Hotel 2000's". function my_ucwords($s) { $a=strtolower($s); $s=ucfirst($a); for($x=0; $x<strlen($s)-1; $x++...
To convert a string to all lowercase, use strtolower(). This function takes a string, and returns a converted copy of the string: Demo <?php $myString = "Hello, world!"; echo strtolower( $myString ); // Displays'hello, world!' ?>//from w w w. j av a 2s . co m ...
输入小写字母转大写字母: ```php function lowerToUpper($lowercase) { $uppercase = strtoupper($lowercase); return $uppercase; } echo lowerToUpper('a'); // 输出 'A' echo lowerToUpper('z'); // 输出 'Z' ```3. 输入字符串中的数字转大写字母: ```php function digitsToUpper($string) { $...
To convert a given string to uppercase in PHP, we usestrtoupper()method. strtoupper() Function This method takes a string in any case as an argument and returns uppercase string. Syntax strtoupper(string) PHP code to convert string into uppercase ...
lowercase验证的字段必须是小写的。mac_address验证的字段必须是一个 MAC 地址。max:value验证的字段的值必须小于或等于最大值 value。字符串、数字、数组和文件的处理方式与 size 规则相同。max_digits:value验证的整数必须具有最大长度 value。mimetypes:text/plain,...验证的文件必须匹配给定的 MIME 类型之一:...
strtolower — Make a string lowercase strtoupper — Make a string uppercase strtr — Translate certain characters substr_compare — Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters substr_count — Count the number of substring occurrences ...
转自https://blog.csdn.net/seoyundu/article/details/101147041 中文翻译php.ini配置文件 1 [PHP 5.0.4 php.ini-dist] 2 3 ;;; 4 ;; 警告 ;; 5 ;;; 6 ; 这是PH