PHP date and time application 14: Convert numbers to month names

Hello, this article will continue to bring you the PHP date and time series. In the previous article "PHP Date and Time Application Thirteen: Calculating the Number of Weeks Between Two Dates", I introduced to you how to calculate two dates. Friends who need it can read and understand the number of weeks between dates~

▎Related recommendations: "PHP date and time application summary (continuously updated~)"

The important content of this article is to teach you how to convert numbers into month names (English) by writing a PHP script.

Attachment: January: January; February: February; March: March; April: April; May: May; June: June; July: July; August: August ; September: September; October: October; November: November; December: December.

Let’s go directly to the code:

The PHP code is as follows:

<?php
$month_num  = 9;
$dateObj   = DateTime::createFromFormat(&#39;!m&#39;, $month_num);
$month_name = $dateObj->format(&#39;F&#39;);
echo $month_name."<br>";

The output result is:

September

In the above example we gave a number 9 and the output month name is September.

It’s very simple!

Then what we need to master is:

DateTime::createFromFormat -- date_create_from_format: Parse the date and time string according to the given format;

date_create_from_format() Function: Returns a new DateTime object formatted according to the specified format.

The syntax is: date_create_from_format(format, time, timezone);

参数	
format必需，规定要使用的格式。
--------------------------------------
format 参数字符串可以使用下列的字符：
d - 一个月中的第几天，带前导零
j - 一个月中的第几天，不带前导零
D - 一周中的某天（Mon - Sun）
I - 一周中的某天（Monday - Sunday）
S - 一个月中的第几天的英语后缀（st, nd, rd, th）
F - 月份名称（January - December）
M - 月份名称（Jan - Dec）
m - 月份（01 - 12）
n - 月份（1 - 12）
Y - 年份（例如 2013）
y - 年份（例如 13）
a 和 A - am 或 pm
g - 12 小时制，不带前导零
h - 12 小时制，带前导零
G - 24 小时制，不带前导零
H - 24 小时制，带前导零
i - 分，带前导零
s - 秒，带前导零
u - 微秒（多达六个数字）
e、O、P 和 T - 时区标识符
U - 自 Unix 纪元以来经过的秒数
（空格）
# - 下列分隔符之一：;、:、/、.、,、-、(、)
? - 一个随机字节
* - 随机字节直到下一个分隔/数字
! - 重置所有字段到 Unix 纪元
| - 如果所有字段都还没被解析，则重置所有字段到 Unix 纪元
+ - 如果存在，字符串中的尾随数据将导致警告，不是错误
---------------------------------------------------------
time必需：规定日期/时间字符串。NULL 指示当前的日期/时间。
---------------------------------------------------------
timezone可选：规定 time 的时区。默认为当前时区。

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