本人写项目常用的公共方法
不定期更新，有什么补充欢迎私聊
<?php
//后台设置返回
function returnajax($code = 0, $msg = '', $data = [], $count = 0)
{
$arr = [
'code' => $code,
'msg' => $msg,
'data' => $data,
'count' => $count
];
return json_encode($arr);
}
//获取ip
function get_client_ip()
{
$ip = $_SERVER['REMOTE_ADDR'];
if (isset($_SERVER['HTTP_CLIENT_IP']) && preg_match('/^([0-9]{1,3}\.){3}[0-9]{1,3}$/', $_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR']) and preg_match_all('#\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}#s', $_SERVER['HTTP_X_FORWARDED_FOR'], $matches)) {
foreach ($matches[0] as $xip) {
if (!preg_match('#^(10|172\.16|192\.168)\.#', $xip)) {
$ip = $xip;
break;
}
}
}
return $ip;
}
//获取客户端信息
function getuseragent()
{
return $_SERVER['HTTP_USER_AGENT'];
}
/*
$url 请求的接口地址
*/
function sendhttp_get($url)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, array());
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$result = json_decode(curl_exec($curl), true);
curl_close($curl);
return $result;
}
// $data 上传资源的地址
function sendhttps_post($url, $data)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($curl, CURLOPT_POST, 1);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($curl);
if (curl_errno($curl)) {
return 'Errno' . curl_error($curl);
}
curl_close($curl);
return $result;
}
// 验证手机号码
function check_phone($value)
{
if (!$value) {
return false;
} elseif (!is_numeric($value)) {
return false;
} elseif (strlen($value) != 11) {
return false;
}
return true;
}
// 验证邮件地址
function check_email($value)
{
if (!$value) {
return false;
} elseif (!preg_match('/^[\w\-\.]+@[\w\-\.]+(\.\w+)+$/', $value)) {
return false;
} elseif (strpos($value, '"') !== false || strpos($value, '\'') !== false) {
return false;
}
return true;
}
//计算经纬距离
function getDistance($longitude1, $latitude1, $longitude2, $latitude2, $unit = 2, $decimal = 2)
{
$EARTH_RADIUS = 6370.996; // 地球半径系数
$PI = 3.1415926;
$radLat1 = $latitude1 * $PI / 180.0;
$radLat2 = $latitude2 * $PI / 180.0;
$radLng1 = $longitude1 * $PI / 180.0;
$radLng2 = $longitude2 * $PI / 180.0;
$a = $radLat1 - $radLat2;
$b = $radLng1 - $radLng2;
$distance = 2 * asin(sqrt(pow(sin($a / 2), 2) + cos($radLat1) * cos($radLat2) * pow(sin($b / 2), 2)));
$distance = $distance * $EARTH_RADIUS * 1000;
if ($unit == 2) {
$distance = $distance / 1000;
}
return round($distance, $decimal); //四舍五入
}
//根据生日计算年龄
function birthday($birthday)
{
$age = strtotime($birthday);
if ($age === false) {
return false;
}
list($y1, $m1, $d1) = explode("-", date("Y-m-d", $age));
$now = strtotime("now");
list($y2, $m2, $d2) = explode("-", date("Y-m-d", $now));
$age = $y2 - $y1;
if ((int)($m2 . $d2) < (int)($m1 . $d1))
$age -= 1;
return $age;
}
//计算几分钟，几小时，几天前
function time_tran($the_time)
{
$now_time = date("Y-m-d H:i:s", time());
//echo $now_time;
$now_time = strtotime($now_time);
$show_time = strtotime($the_time);
$dur = $now_time - $show_time;
if ($dur < 0) {
return $the_time;
} else {
if ($dur < 60) {
return $dur . '秒前';
} else {
if ($dur < 3600) {
return floor($dur / 60) . '分钟前';
} else {
if ($dur < 86400) {
return floor($dur / 3600) . '小时前';
} else {
if ($dur < 259200) { //3天内
return floor($dur / 86400) . '天前';
} else {
return $the_time;
}
}
}
}
}
}
function getRandomString($len, $chars = null)
{
if (is_null($chars)) {
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
}
for ($i = 0, $str = '', $lc = strlen($chars) - 1; $i < $len; $i++) {
$str .= $chars[mt_rand(0, $lc)];
}
return $str;
}