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# ufr_online-examples-php-master_mode
PHP HTTP Master mode Server example.
## Run
Put uFR Online Reader in Master mode and enter Server URL.
Run PHP server
Put card on reader and wait for beep and green light.
## uFR Class usage
Create uFR class object **$ufr = new Ufr;**
Optional get incoming parameters for example card UID **$ufr->getCardId()**
Set response action for example Beep signal **$ufr->getCardId()**
Get generated outgoing message using **$ufr->readerUISignal** and send to uFR Online using **$ufr->sendResponse();**
## uFR Class public methods
**getSerialNumber** - Returns uFR NFC reader serial number
**getOnlineSerialNumber** - Returns uFR Online serial number
**getCardId** - Returns Card UID
**getReader** - Returns 1 if internal reader is used or 2 if external.
**readerUISignal(readerNumber, light, beep)** - Set Reader User interface signal
**setTemplate(readerNumber, template)** - Set Barrier control template (not used for uFR Online)
**lockOpen(readerNumber, lockNumber, duration)** - Open Barrier control lock (not used for uFR Online)
**dlioOpen(readerNumber, lockNumber)** - Open DLIO lock (not used for uFR Online)
**ledRingRGB(readerNumber, red, green, blue)** - Turn on uFR NFC reader RGB ring, all LEDs same color (if connected)
**ledRingArray(readerNumber, array)** - Turn on uFR NFC reader RGB ring, supported up to 24 LEDs (if connected)
**onlineRGB(readerNumber, red, green, blue, duration)** - Turn on uFR Online internal RGB LEDs. Both LEDs same color
**onlineRGBDual(readerNumber, red, green, blue, red1, green1, blue1, duration)** - Turn on uFR Online internal RGB LEDs. LEDs colors separated
**gpioControl(readerNumber, gpio, state)** - Set external uFR Online GPIO state (0 - LOW, 1 - HIGH, 2 - INPUT)
**blinkingControl(readerNumber, state)** - Turn off/on uFR NFC reader blinking LEDs
**pause(readerNumber, duration)** - Add pause between commands.
## ReaderNumber parameter
**ONLINE** - Send command to uFR Online
**UFR1** - Send command to first connected uFR NFC reader
**UFR2** - Send command to second (external) connected uFR NFC reader
**BARRIER** - Send command to barrier controller (if available)
**DLIO** - Send command to DLIO controller (if available)