PHP 致命错误：在布尔值上调用成员函数 format()
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PHP Fatal error: Call to a member function format() on boolean
提问by user1539207
Crashes on:
崩溃于：
<?php
$date = "13-06-2015 23:45:52";
echo Datetime::createFromFormat('d-m-Y h:i:s', $date)->format('Y-m-d h:i:s');
?>
PHP Fatal error: Call to a member function format() on boolean
PHP 致命错误：在布尔值上调用成员函数 format()
But with other dates works well:
但是对于其他日期效果很好：
<?php
$date = "10.06.2015 09:25:52";
echo Datetime::createFromFormat('d-m-Y h:i:s', $date)->format('Y-m-d h:i:s');
?>
Wrong format?
格式不对？
回答by John Conde
Neither example work as you have multiple errors:
这两个示例都不起作用，因为您有多个错误：
- You forgot your second parameter to
Datetime::createFromFormat() h:i:sshould beH:i:s- Your date in the second example is separated by a
.not a-
- 你忘了你的第二个参数
Datetime::createFromFormat() h:i:s应该H:i:s- 您在第二个示例中的日期由一个
.not a分隔-
Fixes:
修复：
<?php
$date = "13-06-2015 23:45:52";
echo DateTime::createFromFormat('d-m-Y H:i:s', $date)->format('Y-m-d h:i:s');
$date = "10.06.2015 09:25:52";
echo DateTime::createFromFormat('d.m.Y H:i:s', $date)->format('Y-m-d h:i:s');
?>
回答by carla
In my case I was getting this error because I was using microtime(true)as input:
就我而言，我收到此错误是因为我将其microtime(true)用作输入：
$now = DateTime::createFromFormat('U.u', microtime(true));
In the specific moments where microtimereturns a float with only zeros as decimals, this error appeared.
在microtime返回只有零作为小数的浮点数的特定时刻，出现了此错误。
So I had to verify if its decimals and add a decimal part:
所以我不得不验证它是否是小数并添加一个小数部分：
$aux = microtime(true);
$decimais = $aux - floor($aux);
if($decimais<=10e-5) $aux += 0.1;
$now = DateTime::createFromFormat('U.u', $aux);
EDIT:
编辑：
Due to floating point precision sometimes floor brings an incorret floor, so I had to use a more straight forward approach:
由于浮点精度有时 floor 会带来 incorret floor，所以我不得不使用更直接的方法：
$aux = microtime(true);
$now = DateTime::createFromFormat('U.u', $aux);
if (is_bool($now)) $now = DateTime::createFromFormat('U.u', $aux += 0.001);
回答by teenage vampire
In my case, I sent an empty value from the input field and get's error
就我而言，我从输入字段发送了一个空值并得到了错误
solution:
解决方案：
if ($this->input->post('date_fo_return') != "") {
$date_fo_return = $this->input->post('date_fo_return');
$date_fo_return2 = DateTime::createFromFormat('d/m/Y', $date_fo_return);
$data['date_fo_return'] = $date_fo_return2->format("Y-m-d H:i:s");
}
回答by Serge Kishiko
While others try to get this question answered with a specific use case, I think it's time to wrap it up with a general answer.
虽然其他人试图通过特定用例来回答这个问题，但我认为是时候用一个通用的答案来结束它了。
Fatal error:Uncaught Error: Call to a member function format() on bool in path/to/source/code/file.php
致命错误：未捕获错误：在 path/to/source/code/file.php 中调用 bool 上的成员函数 format()
When this exception error is raised, it's because the format()function gets a bad date format string. So, try to check the parameter according to https://www.php.net/manual/en/datetime.createfromformat.php#format
引发此异常错误时，是因为该format()函数获取了错误的日期格式字符串。所以，尝试根据https://www.php.net/manual/en/datetime.createfromformat.php#format检查参数
