Prior to PHP 8.0.0, when a string was used in a numeric context it would perform the same steps as above with the following differences: The usage of a leading numeric string would raise anE_NOTICEinstead of anE
INF-->"INF"// float 对于 int 类型来说太大了,回退为 string true-->1// int 兼容 bool [] -->TypeError// int 或 string 不兼容 array // int|float|bool "45"-->45// int 数字 string "45.0"-->45.0// float 数字 string "45X"-->true// 不是 numeric string,回退为 bool ""-->fals...
";echo"Hello world!";echo"I'm about to learn PHP!";echo"This"," string"," was"," made"," with multiple parameters.";print"PHP is fun!";print"Hello world!";print"I'm about to learn PHP!";?> 下面的实例演示了如何使用 echo 命令输出变量和字符串: <?php $txt1="Learn PHP";$txt...
phpclassException{protected$message='Unknown exception';// 异常信息protected$code=0;// 用户自定义异常代码protected$file;// 发生异常的文件名protected$line;// 发生异常的代码行号function__construct($message=null,$code=0);finalfunctiongetMessage();// 返回异常信息finalfunctiongetCode();// 返回异常代码...
string(1) "2" string(1) "0" Uncaught ValueError: str_decrement(): Argument #1 ($string) must be composed only of alphanumeric ASCII characters ... 对bool类型的增减操作不会有任何效果,但会生成警告。同样,对空字符串的增减操作已被弃用。此外需要注意的是,增减非数字字符串都没有效果,并已被弃用...
money String 8 位字符1 nchar String 8 位字符1 numeric String 8 位字符1 nvarchar String 8 位字符1 nvarchar(MAX) Stream2 8 位字符1 ntext6 Stream2 8 位字符1 real Float 8 位字符1 smalldatetime datetime 8 位字符1 smallint Integer 8 位字符1 smallmoney String 8 位字符1 sql_variant7 String...
host: string. can be a host, or the path to a unix domain socket. port: int (default is 6379, should be -1 for unix domain socket) connectTimeout: float, value in seconds (default is 0 meaning unlimited) retryInterval: int, value in milliseconds (optional) readTimeout: float, value...
Transformer can be used by passing in numeric values to thetoWords()method: $numberTransformer->toWords(5120);// outputs "five thousand one hundred twenty" It can be also used with a static method: NumberToWords::transformNumber('en',5120);// outputs "five thousand one hundred twenty" ...
Using String Interpolation; Concatenating the Integer to a String. Casting to String You can simply cast a integer to a string using the (string) cast, for example, like so: $num = 12345; $numericStr = (string) $num; echo $numericStr; // '12345' echo gettype($numericStr); // '...
implode()Returns a string from the elements of an array join()Alias ofimplode() lcfirst()Converts the first character of a string to lowercase levenshtein()Returns the Levenshtein distance between two strings localeconv()Returns locale numeric and monetary formatting information ...