❶ centos 7.2 系统 php7.0.12的 curl 扩展怎么开启
curl是一个广泛使用的用来上传和下载的命令行工具，当然严格来讲，它还可以有别的用途。对于测试来讲，它是Web相关测试非常实用的工具，包括debugging，使用起来非常方便。
下面直接进入主题：
1、直接进入到php源码包中找到原先安装PHP的源码包文件①；
2、直接进入/usr/package/php-7.1.10/ext/curl目录②；
cd /usr/package/php-7.1.10/ext/curl
3、通过phpize工具生成configure文件③；
/usr/local/php/bin/phpize
4、将安装的软件进行配置,检查当前的环境是否满足要安装软件的依赖关系④；
./configure --with-php-config=/usr/local/php/bin/php-config
5、编译程序并安装文件；
make &&make install
6、在php的配置文件php.ini最后一行添加extension=curl.so即可。
相关解释(带圆圈的数字编号)可参考：https://panxu.net/article/8392.html
❷ php 关于intval函数！
第二个参数是指定第一个参数的进制，比如intval("12",5)就是把“12”当成5进制的数，然后把这个5进制的数转换成10进制整数。
intval("12",5) = 7; (5进制的12=10进制7)
intval("1011",2) = 11; (2进制的1011=10进制11)
❸ php输出年龄段，最小年龄12，最大60岁，显示如 12岁-24岁，25岁-36岁....
<?php
/**
*CreatedbyPhpStorm.
*User:[email protected]
*Date:2017/7/13
*Time:12:36
*/
classTestAge
{
/**
*@param$youngAge最小年龄
*@param$oldAge最大年龄
*@param$ageRange分段年龄区间
*@returnarray
*/
publicfunctiongetAgeToArray($youngAge,$oldAge,$ageRange){
$a=array();
$c=array();
$yage=$youngAge;
$ageRangeNum=ceil(($oldAge-$youngAge)/$ageRange);
for($youngAge;$youngAge<=$oldAge;$youngAge++){
array_push($a,$youngAge);
}
for($i=1;$i<=$ageRangeNum;$i++){
foreach($aas$k=>$v){
if($a[$k]<$yage+$ageRange*$i&&$a[$k]>=$yage+$ageRange*($i-1)){
$c[$i][]=$v;
}
}
}
return$c;
}
}
$ob=newTestAge();
$result=$ob->getAgeToArray(12,60,5);
var_mp($result);
❹ php 自动计算12生肖
<?php
//2002/10/23-->出生年月
/*
计算12个星座
计算12个生肖
计算年龄
*/
class timeage
{
public $y = 0;
public $m = 0;
public $d = 0;
public $age = 0;
public $time = 0;
public function __construct($time)
{
$this->time = $time;
$this->y = date('Y',$this->time);
$this->m = date('m',$this->time);
$this->d = date('d',$this->time);
}
public function getage()
{
$this->age = time() - $this->time;
$this->age = $this->age/60/60/24/365;
return (int)$this->age;
}
public function getconstellation()
{
switch ($this->m)
{
case 1:
if ($this->d < 19)
{
$this->constellation = '摩羯座';
return $this->constellation;
}
else
{
$this->constellation = '水瓶座';
return $this->constellation;
}
break;
case 2:
if ($this->d < 18)
{
$this->constellation = '水瓶座';
return $this->constellation;
}
else
{
$this->constellation = '双鱼座';
return $this->constellation;
}
break;
case 3:
if ($this->d < 20)
{
$this->constellation = '双鱼座';
return $this->constellation;
}
else
{
$this->constellation = '白羊座';
return $this->constellation;
}
break;
case 4:
if ($this->d < 19)
{
$this->constellation = '白羊座';
return $this->constellation;
}
else
{
$this->constellation = '金牛座';
return $this->constellation;
}
break;
case 5:
if ($this->d < 20)
{
$this->constellation = '金牛座';
return $this->constellation;
}
else
{
$this->constellation = '双子座';
return $this->constellation;
}
break;
case 6:
if ($this->d < 21)
{
$this->constellation = '双子座';
return $this->constellation;
}
else
{
$this->constellation = '巨蟹座';
return $this->constellation;
}
break;
case 7:
if ($this->d < 22)
{
$this->constellation = '巨蟹座';
return $this->constellation;
}
else
{
$this->constellation = '狮子座';
return $this->constellation;
}
break;
case 8:
if ($this->d < 22)
{
$this->constellation = '狮子座';
return $this->constellation;
}
else
{
$this->constellation = '处女座';
return $this->constellation;
}
break;
case 9:
if ($this->d < 22)
{
$this->constellation = '处女座';
return $this->constellation;
}
else
{
$this->constellation = '天秤座';
return $this->constellation;
}
break;
case 10:
if ($this->d < 23)
{
$this->constellation = '天秤座';
return $this->constellation;
}
else
{
$this->constellation = '天蝎座';
return $this->constellation;
}
break;
case 11:
if ($this->d < 22)
{
$this->constellation = '天蝎座';
return $this->constellation;
}
else
{
$this->constellation = '射手座';
return $this->constellation;
}
break;
case 12:
if ($this->d < 20)
{
$this->constellation = '射手座';
return $this->constellation;
}
else
{
$this->constellation = '摩羯座';
return $this->constellation;
}
break;
}
}
public function getzodiac()
{
$this->animals = array('鼠', '牛', '虎', '兔', '龙', '蛇','马', '羊', '猴', '鸡', '狗', '猪');
$this->zodiac = ($this->y - 1900) % 12;
return $this->animals[$this->zodiac];
}
}
$age = strtotime('1993-07-25');
echo $age;
$a = new timeage($age);
echo '<br>';
echo $a->y;
echo '<br>';
echo $a->m;
echo '<br>';
echo $a->d;
echo '<br>';
echo $a->time;
echo '<br>';
echo $a->age;
echo '<br>';
echo $a->getage();
echo '<br>';
echo $a->getconstellation();
echo '<br>';
echo $a->getzodiac();
//没事干替你写了个全部的功能函数 写代码类 记得给好评
❺ <php $arr = array(5 => 1, 12 => 2,2 => 3); $arr[] = 56; 请问此处中括号中的键名是3吗$arry[3]=56.
<?php $arr = array(5 => 1, 12 => 2,2 => 3); $arr[] = 56; 请问此处中括号中的键名是3吗？
这里不是3 而是13，因为 array(5 => 1, 12 => 2,2 => 3) 里面，关联数组 数字ID键名最大是12，
$arr[] = 56; 这里再加一个键，就是13了。