Category Archives: PHP
Change upload_max_filesize in php.ini (Ubuntu)
Execute this command:
sudo service php5.6-fpm restart
Laravel Custom Model Class
API Related
Redirect to previous page after login
- Save URL referer in login page
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//For redirection after login protected function save_referer(){ $uri = $_SERVER['HTTP_REFERER']; //logg($uri); $pos = strpos($uri, BASE_URL); if($pos === false){ return; } $uri = str_replace(BASE_URL, '', $uri); //logg($uri); $_SESSION['uri'] = $uri; } |
2. Check saved URI after login successfully and redirect
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private function login_redirect(){ if(isset($_SESSION['uri']) && $_SESSION['uri'] != false){ $uri = $_SESSION['uri']; unset($_SESSION['uri']); redirect(BASE_URL . $uri); }else{ redirect(BASE_URL . 'member/orders'); } } |
session_start() permission issue
https://serverfault.com/questions/558641/aws-ec2-php-session-start-with-permission-denied
This is because the “Local value” overwrite “Master value” and point to a folder that users don’t have permission to write session related files.
- Change session.save_path value or uncomment the line in php.ini
1sudo nano /etc/php.ini - Find and edit the config file
/etc/httpd/conf.d/php.conf - Restart apache
1sudo service httpd restart
iPhone Orientation Issue
Images taken by iphone always show wrong orientation after upload to server. This is why. Fuck!
Reference:
- http://www.impulseadventure.com/photo/exif-orientation.html
- http://janochen.blogspot.tw/2008/09/exif-orientation.html
- PHP example:
http://richardsumilang.com/programming/php/graphics/working-with-apples-ios-image-orientation/ - https://www.thoughtco.com/why-is-my-picture-turned-sideways-1701398
- http://stackoverflow.com/questions/10600613/ios-image-orientation-has-strange-behavior
- PHP imagerotate():
http://php.net/manual/en/function.imagerotate.php - Get exif
http://stackoverflow.com/questions/7489742/php-read-exif-data-and-adjust-orientation
exif example: (taken by iphone 5)
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<pre>Array ( [FileName] => bc522572b9ed9f32d9f57dcb8fd120c5.jpg [FileDateTime] => 1492243697 [FileSize] => 2337483 [FileType] => 2 [MimeType] => image/jpeg [SectionsFound] => ANY_TAG, IFD0, THUMBNAIL, EXIF, GPS [COMPUTED] => Array ( [html] => width="3264" height="2448" [Height] => 2448 [Width] => 3264 [IsColor] => 1 [ByteOrderMotorola] => 1 [ApertureFNumber] => f/2.4 [Thumbnail.FileType] => 2 [Thumbnail.MimeType] => image/jpeg ) [Make] => Apple [Model] => iPhone 5 [Orientation] => 3 [XResolution] => 72/1 [YResolution] => 72/1 [ResolutionUnit] => 2 [Software] => 10.0.2 [DateTime] => 2017:04:15 15:47:57 [YCbCrPositioning] => 1 [Exif_IFD_Pointer] => 206 [GPS_IFD_Pointer] => 1016 [THUMBNAIL] => Array ( [Compression] => 6 [XResolution] => 72/1 [YResolution] => 72/1 [ResolutionUnit] => 2 [JPEGInterchangeFormat] => 1420 [JPEGInterchangeFormatLength] => 13367 ) [ExposureTime] => 1/20 [FNumber] => 12/5 [ExposureProgram] => 2 [ISOSpeedRatings] => 160 [ExifVersion] => 0221 [DateTimeOriginal] => 2017:04:15 15:47:57 [DateTimeDigitized] => 2017:04:15 15:47:57 [ComponentsConfiguration] => [ShutterSpeedValue] => 3799/879 [ApertureValue] => 4845/1918 [BrightnessValue] => 3615/1942 [ExposureBiasValue] => 0/1 [MeteringMode] => 5 [Flash] => 24 [FocalLength] => 103/25 [SubjectLocation] => Array ( [0] => 735 [1] => 1675 [2] => 231 [3] => 232 ) [MakerNote] => Apple iOSMM ht � � � bplist00�YtimescaleUvalueUepochUflags;��n �7�!'-2;= ?�;�����V����( [SubSecTimeOriginal] => 867 [SubSecTimeDigitized] => 867 [FlashPixVersion] => 0100 [ColorSpace] => 1 [ExifImageWidth] => 3264 [ExifImageLength] => 2448 [SensingMethod] => 2 [SceneType] => [ExposureMode] => 0 [WhiteBalance] => 0 [FocalLengthIn35mmFilm] => 33 [SceneCaptureType] => 0 [UndefinedTag:0xA432] => Array ( [0] => 103/25 [1] => 103/25 [2] => 12/5 [3] => 12/5 ) [UndefinedTag:0xA433] => Apple [UndefinedTag:0xA434] => iPhone 5 back camera 4.12mm f/2.4 [GPSLatitudeRef] => N [GPSLatitude] => Array ( [0] => 24/1 [1] => 57/1 [2] => 5964/100 ) [GPSLongitudeRef] => E [GPSLongitude] => Array ( [0] => 121/1 [1] => 32/1 [2] => 2447/100 ) [GPSAltitudeRef] => [GPSAltitude] => 47200/1367 [GPSTimeStamp] => Array ( [0] => 7/1 [1] => 47/1 [2] => 5537/100 ) [GPSSpeedRef] => K [GPSSpeed] => 0/1 [GPSImgDirectionRef] => T [GPSImgDirection] => 33149/140 [GPSDestBearingRef] => T [GPSDestBearing] => 33149/140 [GPSDateStamp] => 2017:04:15 [UndefinedTag:0x001F] => 29678/199 ) </pre> |
Upload Error Handler
Helper functions:
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if ( ! function_exists('check_post_size')) { function check_post_size(){ //檢查$_FILES是不是空的，如果是的話很有可能檔案超過post_max_size設定的大小 //超過post_max_size的話$_FILES和$_POST都會是空的 if($_FILES == false && $_POST == false){ $message = "The uploaded file exceeds " . ini_get('post_max_size'); return false; } return true; } } if ( ! function_exists('file_upload_error')) { function file_upload_error($field_name) { $message = ''; switch ($_FILES[$field_name]['error']) { case UPLOAD_ERR_INI_SIZE: $message = "The uploaded file exceeds " . ini_get('upload_max_filesize'); break; case UPLOAD_ERR_FORM_SIZE: $message = "The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form"; break; case UPLOAD_ERR_PARTIAL: $message = "The uploaded file was only partially uploaded"; break; case UPLOAD_ERR_NO_FILE: $message = "No file was uploaded"; break; case UPLOAD_ERR_NO_TMP_DIR: $message = "Missing a temporary folder"; break; case UPLOAD_ERR_CANT_WRITE: $message = "Failed to write file to disk"; break; case UPLOAD_ERR_EXTENSION: $message = "File upload stopped by extension"; break; case UPLOAD_ERR_OK: break; default: $message = "Unknown upload error: " . $_FILES[$field_name]['error']; break; } return $message; } } if ( ! function_exists('has_file_upload')) { function has_file_upload($field_name) { $result = true; if(isset($_FILES[$field_name]) == true){ $file = $_FILES[$field_name]; if($file['tmp_name'] == false){ $result = false; } }else{ $result = false; } return $result; } } |
Other programming issue:
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//If related to Upload_lib.php, make sure following values are big enough $config['max_size'] = '9999'; $config['max_width'] = '9999'; $config['max_height'] = '9999'; //Image_handler.php //If memory is not enough, this line could cause error: imagecreatefromjpeg($file); |
Sending Emails using Gmail
如果要利用phpmailer由Gmail發信，要設定google account:
未開啟兩階段認證:
要啟用”允許安全性較低的應用程式”
注意: 有可能在帳戶中找不到這個選項，應該是有使用G Suite而且權限被Dsiable, G Suite的設定參考這一篇
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$this->mail= new PHPMailer(); $this->mail->From = $this->sender['email']; $this->mail->FromName = $this->sender['name']; $this->mail->IsHTML(true); $this->mail->isSMTP(); $this->mail->Host = $this->smtp['host']; $this->mail->SMTPAuth = true; $this->mail->Username = $this->smtp['user_name']; $this->mail->Password = $this->smtp['password']; $this->mail->SMTPSecure = 'tls'; $this->mail->CharSet = "utf-8"; $this->mail->Encoding = "base64"; $this->mail->Port = 587; $this->mail->SMTPDebug = false; |
已啟用兩階段認證:
要取得應用程式密碼
Change upload size limit by htaccess
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RewriteEngine on RewriteBase / RewriteCond $1 !^(index\.php|images|robots\.txt|assets|uploads|thumbs|$|demo|img|event) RewriteRule ^(.*)$ index.php?/$1 [L,QSA] php_value upload_max_filesize 10M php_value post_max_size 10M |
This solution works even in shared server.