How to get QQ avatar and display it in php
Recently I saw the avatars in blog messages which are a bit awkward, because the avatars of visitors all have the same avatar, which is not very comfortable to look at. Although most themes now integrate the Gavatar avatar function, let’s not talk about the issue of gavatar being blocked. I haven’t even gotten a gavatar avatar myself yet.
Because I logged in several times and the connection speed was extremely slow, I gave up. Of course, there are countless message plug-ins. For example, the popular Duodao is now, but for friends who have not registered Duodao, the avatar is still a problem. , I have tested Duosuo’s social account binding many times, QQ, Renren and other mainstream platforms often make mistakes, and some friends hate cumbersome authorization.
In view of this, I am thinking of a popular and relatively simple method. What I am thinking of is to call the QQ avatar of friends who do not have avatars. Because QQ now has at least one for everyone, so you only need to fill in the QQ number when leaving a message, and then Call its avatar, which will be much more convenient.
The first thing is to get the QQ avatar. This is also the first step of this idea, which is today’s topic.
The first method, the code is as follows:
The code is as follows:
echo '
?>
The second method, the code is as follows:
The code is as follows:
$src = 'http://q1.qlogo.cn/g?b=qq&nk=' . $qq . '&s=100&t=' . time();
header('Content-type: image/png');
$res = imagecreatefromstring(file_get_contents($src));
imagepng($res);
imagedestroy($res);
?>
The difference between these two methods:
The advantage of the first method is that it can output the original image of the avatar. If your avatar is a dynamic gif, then the output is also a dynamic image. The disadvantage is that it is relatively slow and is not suitable as a method to call the avatar.
The advantage of the second method is that it is faster than the first method, but it only captures the static image of the avatar and does not display the dynamic avatar. It is more suitable as a method of calling the avatar.

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。


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