PHP实例方法的例子有:1、PHPExcel读取Excel,2、获取文本中首张图片地址;3、将图片保存到本地;4、返回JSON数据;5、【var_dump】函数改写;6、图片转为base64格式等等。
PHP实例方法的例子有:
PHPExcel 读取Excel
获取文本中首张图片地址
将图片保存到本地
返回JSON数据
var_dump 函数改写
图片转为base64格式
使用curl 实现get请求
使用curl 实现post请求
简单的xml转数组方法
Utf-8转统一码
字符串转统一编码
获取IP地址
创建随机字符串
根据生日获取年龄
根据经纬度计算距离
PHPExcel 读取excel
function readExcel($filename, $encode = &#39;utf-8&#39;) { // import("ORG.Util.PHPExcel.IOFactory"); import("Org/Util/PHPExcel"); if (strpos($filename, "xlsx")) { $objReader = PHPExcel_IOFactory::createReader(&#39;Excel2007&#39;); } else { $objReader = PHPExcel_IOFactory::createReader(&#39;Excel5&#39;); } $objReader->setReadDataOnly(true); $objPHPExcel = $objReader->load($filename); $objWorksheet = $objPHPExcel->getActiveSheet(); $highestRow = $objWorksheet->getHighestRow(); $highestColumn = $objWorksheet->getHighestColumn(); $highestColumnIndex = PHPExcel_Cell::columnIndexFromString($highestColumn); $excelData = array(); for ($row = 1; $row <= $highestRow; $row++) { if ((string)$objWorksheet->getCellByColumnAndRow(0, $row)->getValue() == "") continue; for ($col = 0; $col <$highestColumnIndex; $col++) { $value = (string)$objWorksheet->getCellByColumnAndRow($col, 1)->getValue(); if ($value == "") { continue; } $excelData[$row - 1][] = (string)$objWorksheet->getCellByColumnAndRow($col, $row)->getValue(); } } return $excelData; }
获取文本中首张图片地址
function getFirstPic($content){ if(preg_match_all("/(src)=([\"|&#39;]?)([^ \"&#39;>]+\.(gif|jpg|jpeg|bmp|png))\\2/i", $content, $matches)){ $str=$matches[3][0]; if(preg_match(&#39;/\/ueditor\/php\/upload\/image/&#39;,$str)){ return $str1=substr($str,6); } } }
将图片保存到本地
function getImage($url,$save_dir=&#39;&#39;,$filename=&#39;&#39;,$type=1){ if(trim($url)==&#39;&#39;){ return array(&#39;file_name&#39;=>&#39;&#39;,&#39;save_path&#39;=>&#39;&#39;,&#39;error&#39;=>1); } if(trim($save_dir)==&#39;&#39;){ $save_dir=&#39;./&#39;; } if(trim($filename)==&#39;&#39;){//保存文件名 $ext = strrchr($url,&#39;.&#39;); if($ext!=&#39;.gif&#39;&&$ext!=&#39;.jpg&#39;){ return array(&#39;file_name&#39;=>&#39;&#39;,&#39;save_path&#39;=>&#39;&#39;,&#39;error&#39;=>3); } $filename=time().$ext; } if(0!==strrpos($save_dir,&#39;/&#39;)){ $save_dir.=&#39;/&#39;; } //创建保存目录 if(!file_exists($save_dir)&&!mkdir($save_dir,0777,true)){ return array(&#39;file_name&#39;=>&#39;&#39;,&#39;save_path&#39;=>&#39;&#39;,&#39;error&#39;=>5); } //获取远程文件所采用的方法 if($type){ $ch=curl_init(); $timeout=5; curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout); $img=curl_exec($ch); curl_close($ch); } else{ ob_start(); readfile($url); $img=ob_get_contents(); ob_end_clean(); } $size=strlen($img); echo $size; //文件大小 $fp2=fopen($save_dir.$filename,&#39;a&#39;); fwrite($fp2,$img); fclose($fp2); unset($img,$url); return array(&#39;file_name&#39;=>$filename,&#39;save_path&#39;=>$save_dir.$filename,&#39;error&#39;=>0); }
返回JSON数据
function show($status, $msg, $closeCurrent=false, $data=array()){ $tmpArr = array( &#39;statusCode&#39; => $status, &#39;message&#39; => $msg, &#39;closeCurrent&#39; => $closeCurrent, ); $tmpArr = array_merge($tmpArr, $data); exit(json_encode($tmpArr)); }
var_dump 函数改写
function lyl_dump($content){ header("Content-type:text/html;charset=utf-8"); echo &#39;&#39;; echo ""; var_dump($content); echo ""; die; }图片转为base64格式
function base64EncodeImage ($image_file) { if(!file_exists($image_file)){ return false; } $image_info = getimagesize($image_file); $image_data = fread(fopen($image_file, &#39;r&#39;), filesize($image_file)); $base64_image = chunk_split(base64_encode($image_data)); return $base64_image; }使用curl 实现get请求
function httpGet($url) { $curl = curl_init(); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_TIMEOUT, 500); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true); //这个是的ssl校验,需要验证 curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, true); // curl_setopt($curl, CURLOPT_URL, $url); $res = curl_exec($curl); curl_close($curl); return $res; }使用curl 实现post 请求
function httpPost($url,$post_data){ $curl = curl_init(); $post_data = json_encode($post_data); curl_setopt($ch , CURLOPT_URL , $url); curl_setopt($ch , CURLOPT_HEADER , 0 ); curl_setopt( $ch, CURLOPT_POST, 1); //设置为POST方式 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch , CURLOPT_POSTFIELDS , $post_data); $rst = curl_exec( $ch ); curl_close( $ch ); return $rst; }简单的xml转数组方法
function simplexml_to_array($simplexml_obj, $array_tags = array(), $strip_white = 1) { if ($simplexml_obj) { if (count($simplexml_obj) == 0) return $strip_white ? trim((string)$simplexml_obj) : (string)$simplexml_obj; $attr = array(); foreach ($simplexml_obj as $k => $val) { if (!empty($array_tags) && in_array($k, $array_tags)) { $attr[] = simplexml_to_array($val, $array_tags, $strip_white); } else { $attr[$k] = simplexml_to_array($val, $array_tags, $strip_white); } } return $attr; } return FALSE; }Utf-8转统一码
function utf8_to_unicode($char) { switch (strlen($char)) { case 1: return ord($char); case 2: $n = (ord($char[0]) & 0x3f) <<6; $n += ord($char[1]) & 0x3f; return $n; case 3: $n = (ord($char[0]) & 0x1f) <<12; $n += (ord($char[1]) & 0x3f) <<6; $n += ord($char[2]) & 0x3f; return $n; case 4: $n = (ord($char[0]) & 0x0f) <<18; $n += (ord($char[1]) & 0x3f) <<12; $n += (ord($char[2]) & 0x3f) <<6; $n += ord($char[3]) & 0x3f; return $n; } }字符串转统一编码
function str_to_unicode_word($str,$depart=&#39; &#39;) { $arr = array(); $str_len = mb_strlen($str,&#39;utf-8&#39;); for($i = 0;$i <$str_len;$i++) { $s = mb_substr($str,$i,1,&#39;utf-8&#39;); if($s != &#39; &#39; && $s != &#39; &#39;) { $arr[] = &#39;ux&#39;.utf8_to_unicode($s); } } return implode($depart,$arr); }获取IP地址
function getIP() { static $realip; if (isset($_SERVER)) { if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) { $realip = $_SERVER["HTTP_X_FORWARDED_FOR"]; } else if (isset($_SERVER["HTTP_CLIENT_IP"])) { $realip = $_SERVER["HTTP_CLIENT_IP"]; } else { $realip = $_SERVER["REMOTE_ADDR"]; } } else { if (getenv("HTTP_X_FORWARDED_FOR")) { $realip = getenv("HTTP_X_FORWARDED_FOR"); } else if (getenv("HTTP_CLIENT_IP")) { $realip = getenv("HTTP_CLIENT_IP"); } else { $realip = getenv("REMOTE_ADDR"); } } return $realip; }创建随机字符串
function createNonceStr($length = 16) { $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; $str = ""; for ($i = 0; $i <$length; $i++) { $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1); } return $str; }根据生日获取年龄
function get_age($birthday){ if($birthday){ list($y1,$m1,$d1) = explode("-",date("Y-m-d",$birthday)); list($y2,$m2,$d2) = explode("-",date("Y-m-d",time())); $age = $y2-$y1; if(intval($m2.$d2)根据经纬度计算距离
function getDistance($lat1, $lng1, $lat2, $lng2) { $earthRadius = 6367000; $lat1 = ($lat1 * pi() ) / 180; $lng1 = ($lng1 * pi() ) / 180; $lat2 = ($lat2 * pi() ) / 180; $lng2 = ($lng2 * pi() ) / 180; $calcLOngitude= $lng2 - $lng1; $calcLatitude = $lat2 - $lat1; $stepOne= pow(sin($calcLatitude / 2), 2) + cos($lat1) * cos($lat2) * pow(sin($calcLongitude / 2), 2); $stepTwo = 2 * asin(min(1, sqrt($stepOne))); $calculatedDistance = $earthRadius * $stepTwo; return round($calculatedDistance); }相关免费学习推荐:php编程(视频)
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