Question

使用mktime在PHP 7.0中无法运行数月。

    $month_options="";
    for( $i = 1; $i <= 12; $i++ ) {
        $month_num = str_pad( $i, 2, 0, STR_PAD_LEFT );
        $month_name = date( 'F', mktime( 0, 0, 0, $i + 1, 0, 0, 0 ));
        $selected="";
        $month_options.$month_name."<br/>";
    }
    echo $month_options;

PHP 5.5中的结果

January
February
March
April
May
June
July
August
September
October
November
December

7.0的结果

January
January
January
January
January
January
January
January
January
January
January

请帮助我如何解决这个问题？...提前感谢

Answer 1

在PHP 7中删除了here的mktime的最后一个参数Try this code snippet here 7.0.8是清晰的，你必须提供6个参数而不是7个。

https://developer.github.com/v3/repos/hooks/

is_dst

Answer 2

注意PHP7 = is_dst参数已被删除。

$month_options="";
for( $i = 1; $i <= 12; $i++ ) {
    /* $month_num = str_pad( $i, 2, 0, STR_PAD_LEFT ); -- there is no use for this line */ 
    $month_name = date( 'F', mktime( 0, 0, 0, $i + 1, 0, 0)); // is_dst parameter has been removed.
    /* $selected=""; -- there is no use for this line */
    /* $month_options.$month_name."<br/>"; -- you are not correctly set this paramter */
    $month_options .= $month_name."<br/>"; // so if you do like this, it will be correct
}
echo $month_options;

Answer 3

为什么不使用DateTime对象呢？它们更易于使用，更易于操作。 DateTime可从PHP5.2及更高版本获得。

此代码段

$date = new DateTime("january");
for ($i = 1; $i <= 12; $i++) {
    echo $date->format("F")."\n";
    $date->modify("+1 months");
}

会输出

January
February
March
April
May
June
July
August
September
October
November
December

Live demo

PHP 7.0 mktime无法正常工作

3 个答案: