本文主要和大家分享php實現以post方式上傳圖片檔案的方法執行個體,在調用第三方api介面時,有時會遇到通過http協議上傳圖片,以下是一個公眾平台新增永久素材的例子;
php代碼:
/* 使用curl函數 */ $url = "https://api.weixin.qq.com/cgi-bin/material/add_material?access_token=ACCESS_TOKEN&type=image"; $post_data = array( 'media' => '@bag03.jpg', ); $response = curl_http($url, 'POST', $post_data); $params = array(); $params = json_decode($response,true); if (isset($params['errcode'])) { echo "error:" . $params['errcode']; echo "msg :" . $params['errmsg']; exit; } var_dump( $params ); /** * http請求方式: 預設GET */ function curl_http($url, $method="GET", $postfields){ $ch = curl_init(); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); curl_setopt($ch, CURLOPT_URL, $url); switch ($method) { case "POST": curl_setopt($ch, CURLOPT_POST, true); if (!empty($postfields)) { $hadFile = false; if (is_array($postfields) && isset($postfields['media'])) { /* 支援檔案上傳 */ if (class_exists('\CURLFile')) { curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true); foreach ($postfields as $key => $value) { if (isPostHasFile($value)) { $postfields[$key] = new \CURLFile(realpath(ltrim($value, '@'))); $hadFile = true; } } } elseif (defined('CURLOPT_SAFE_UPLOAD')) { if (isPostHasFile($value)) { curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false); $hadFile = true; } } } $tmpdatastr = (!$hadFile && is_array($postfields)) ? http_build_query($postfields) : $postfields; curl_setopt($ch, CURLOPT_POSTFIELDS, $tmpdatastr); } break; default: curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method); /* //佈建要求方式 */ break; } $ssl = preg_match('/^https:\/\//i',$url) ? TRUE : FALSE; curl_setopt($ch, CURLOPT_URL, $url); if($ssl){ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // https請求 不驗證認證和hosts curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); // 不從認證中檢查SSL密碼編譯演算法是否存在 } $response = curl_exec($ch); curl_close($ch); if(empty($response)){ exit("錯誤請求"); } return $response; } function isPostHasFile($value) { if (is_string($value) && strpos($value, '@') === 0 && is_file(realpath(ltrim($value, '@')))) { return true; } return false; }
也可以使用php內建的系統函數,如果使用過程中出現問題,建議查看是否啟用相應的系統函數。
使用exec系統函數:
/* 使用exec函數 */$command = 'curl -F media=@'.$filepath.' "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=ACCESS_TOKEN&type=image"';$retval = array();exec($command, $retval, $status);$params = array();$params = json_decode($retval[0],true);if ($status != 0) { $params = array( 'errcode' => '-100', 'errmsg' => '公眾號服務出錯,請聯絡管理員', );}return $params;
使用system系統函數:
/* 使用system函數 */$command = 'curl -F media=@'.$filepath.' "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=ACCESS_TOKEN&type=image"';$retval = 1;$last_line = system($command, $retval);$params = array();$params = json_decode($last_line,true);if ($retval != 0) { if (isset($params['errcode'])) { $params = array( 'errcode' => '-100', 'errmsg' => '公眾號服務出錯,請聯絡管理員', ); }}return $params;