Php 带printf的千位分隔符

如何在

printf

中使用千位分隔符（如逗号）

例如：

printf("<td class='number'>%d</td>", $totals['Sold']); //need thousand separated 
printf("<td class='number'>%.2f</td>", $totals['Fees']); //need thousand separated

printf（“%d”，总计$totals['sall']）//需要千人分开吗
printf（“%.2f”，总计$['费用]）//需要千人分开吗

更新这是我最初拥有的：

foreach(array_keys($totals) as $key){
        if(is_numeric($totals[$key])){
            $totals[$key] = number_format($totals[$key],2);
        }
    }

    echo "</tbody>
        <tfoot><tr>";
    echo "<td class='text' colspan='4'>Totals:</td>";
    echo "<td class='number'>{$totals['Bought']}</td>";
    echo "<td class='number'>{$totals['Sold']}</td>";
    echo "<td class='number'>{$totals['Fees']}</td>";
    echo "<td class='number'>{$totals['Realized']}</td>";
    echo "<td class='number'>{$totals['Net']}</td>";
    echo "<td colspan='3'>{$totals['EOD Price']}</td>";
    echo "</tr>
        </tfoot>";

foreach（数组_键（$totals）作为$key）{
如果（是数字（$totals[$key]））{
$totals[$key]=数字格式（$totals[$key]，2）；
}
}
回声“
";
回声“总计：”；
echo“{$totals['bunded']}”；
echo“{$totals['salled']}”；
echo“{$totals['Fees']}”；
echo“{$totals['Realized']}”；
echo“{$totals['Net']}”；
echo“{$totals['EOD Price']}”；
回声“
";

我希望它是这样的：

echo "</tbody>
        <tfoot><tr>";
    echo "<td class='text' colspan='3'>Totals:</td>";
    printf("<td class='number'>%d</td>", $totals['Bought']) ;
    printf("<td class='number'>%d</td>", $totals['Sold']) ;
    printf("<td class='number'>%.2f</td>", $totals['Fees']) ;
    printf("<td class='number'>%.2f</td>", $totals['Realized']) ;
    printf("<td class='number'>%.2f</td>", $totals['Net']) ;
    printf("<td colspan='3'>%.2f</td>", $totals['EOD Price']) ;
    echo "</tr>
        </tfoot>";

echo”
";
回声“总计：”；
printf（“%d”，合计$totals['bunded']）；
printf（“%d”，$totals['sall']）；
printf（“%.2f”，总计$['费用]）；
printf（“%.2f”，$totals[“已实现]）；
printf（“%.2f”，$totals['Net']）；
printf（“%.2f”，总计美元['EOD价格]）；
回声“
";

---

但是我需要逗号，你可以使用数字格式功能

$totals['Sold']=number_format($totals['Sold']);
$totals['Fees']=number_format($totals['Fees']);

string number_format ( float $number , int $decimals = 0 , string $dec_point = '.' , string $thousands_sep = ',' )

---

使代码美观，不要重复所有内容。只需中断PHP上下文即可完成此操作，然后使用number_格式而不是printf进行回显：

</tbody>
<tfoot>
    <tr>
        <td ...>Totals</td>
        <td ...><?php echo number_format($totals['Bought'], 0); ?></td>
        <td ...><?php echo number_format($totals['Sold'], 0); ?></td>
        <td ...><?php echo number_format($totals['Fees'], 2); ?></td>
        ...
    </tr>
</tfoot>

总数
...

作为对ircmaxell答案的补充：

如果您有一个多语言软件，并且不希望每次调用

number\u format

时都传递dec\u point和数千\u sep参数，则可以使用一个自定义函数来检查当前区域设置，以确定当前小数点和千位分隔符，如下所示：

<?php
    /**
     * Calls {@link number_format} with automatically determining dec_point and thousands_app
     * according to the current locale in case they are null or omitted.
     * @param float $number The number being formatted.
     * @param int $decimals [optional] Sets the number of decimal points.
     * @param string|null $dec_point [optional] Decimal point character (determined automatically
     *        when set to null or omitted).
     * @param string|null $thousands_sep [optional] Thousands separator character (determined
     *        automatically when set to null or omitted).
     * @return string
     */
    function custom_number_format($number, $decimals = 0, $dec_point = null, $thousands_sep = null) {
        $locale            = setlocale(LC_NUMERIC, 0); // yes, there is no getlocale()
        $def_dec_point     = '.';
        $def_thousands_sep = ',';
        switch (substr($locale, 0, 2)) {
            case 'de':
                $def_dec_point     = ',';
                $def_thousands_sep = '.';
                break;
            case 'fr':
                $def_dec_point     = ',';
                $def_thousands_sep = ' ';
                break;
            case 'en':
            default:
                $def_dec_point     = '.';
                $def_thousands_sep = ',';
        }
        if (!isset($dec_point)) $dec_point = $def_dec_point;
        if (!isset($thousands_sep)) $thousands_sep = $def_thousands_sep;

        return number_format($number, $decimals, $dec_point, $thousands_sep);
    }

    $nr = 1234.56;
    setlocale(LC_NUMERIC, 'de_DE');
    echo custom_number_format($nr, 2);
    # output: 1.234,56

    setlocale(LC_NUMERIC, 'en_US');
    echo custom_number_format($nr, 2);
    # output: 1,234.56

    setlocale(LC_NUMERIC, 'fr_FR');
    echo custom_number_format($nr, 2);
    # output: 1 234,56

    # you still can use whatever you want as dec_point and thousands_sep no matter which locale is set
    setlocale(LC_NUMERIC, 'de_CH');
    echo custom_number_format($nr, 2, '.', "'");
    # output: 1'234.56

---

这是什么意思？逗号不是数字，因此使用%d本质上是错误的。我想你要找的是解析一个数字。@Zirak，我想有些数字是带逗号的整数，有些是浮点数。这可能是最好的方法。为什么我没有想到这一点？一个小小的改变是少打字（虽然有人说它不太可读，所以请选择）是做一些像<代码>

这与短\u打开\u标记不同，因此如果禁用了该标记，请不要担心。