function isTwoDecimalPlaces($number) { $decimal = $number – (int) $number; // 获取小数部分 $decimal = round($decimal, 2); // 将小数部分保留两位 // 判断保留两位后的小数和小数部分是否相等 return $decimal == round($decimal, 2); } $number1 = 123.45; // 符合条件的数字 $number2 = ...
function isTwoDecimalPlaces($number) { // 使用正则表达式匹配小数点后两位小数 $pattern = ‘/^\d+(\.\d{1,2})?$/’; // 使用preg_match函数进行匹配 if (preg_match($pattern, $number)) { return true; } else { return false; }} // 示例用法$number1 = 1.23;$number2 = 1.234;$number...
Php - Format a float to two decimal places, 3. If you're simply trying to ensure a number is displayed with two decimal places, you could also use number_format, or (if this is a currency value) … Tags: format a float to two decimal placesshow a number to two decimal places in ...
/* {{{ proto string number_format(float number [, int num_decimal_places [, string dec_separator, string thousands_separator]]) Formats a number with grouped thousands */ PHP_FUNCTION(number_format) { // 期望number_format的第一个参数num是double类型的,在词法阶段已经对字面量常量做了转换 dou...
PHP_FUNCTION(number_format) // number// 你要格式化的数字// num_decimal_places// 要保留的小数位数// dec_separator// 指定小数点显示的字符// thousands_separator// 指定千位分隔符显示的字符/* {{{ proto string number_format(float number [, int num_decimal_places [, string dec_separator, strin...
function format_number($str,$decimal_places='2',$decimal_padding="0"){ /* firstly format number and shorten any extra decimal places */ /* Note this will round off the number pre-format $str if you dont want this fucntionality */ ...
格式化字符串,number_format()函数用来将数字字符串格式化 stringnumber_format(floatnumber,[intnum_decimal_places],[string dec_seperator],string thousands_ seperator) 分割字符串,explode()函数,对一个字符串进行分割,返回值为数组: arrayexplode(string separator,string str,[intlimit]) ...
Let’s apply some custom formatting – using a space instead of a comma as the thousands separator, and setting the number of decimal places to display to2: $myNumber = 4567.375; $myFormattedNumber = number_format($myNumber, 2, '.', ' '); ...
mixed str_ireplace(mixed search,mixed replace, mixed subject[,int &count]) substr_replace()函数对指定字符串中的部分字符串进行替换 格式化字符串 string number_format(float number,[int num_decimal_places],[string dec_seperator],string thousands_ seperator) 分割字符串 array explode(string separator,...
Float A float is a floating point number. This is a numerical value with decimal places. PHP supports up to 14 digits after the decimal point. Boolean Boolean variables are the result of a logical operation and know only two values: TRUE (true) and FALSE (false). This type...