34 lines
642 B
PHP
34 lines
642 B
PHP
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#!/usr/bin/php
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<?php
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require_once __DIR__.'/../../include/const';
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function mfrc522_read(){
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/* [1] Read card code
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=========================================================*/
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/* (1) Fetch card file */
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$code = @file_get_contents(TMP_DIR.'/card');
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/* (2) Manage error */
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if( !is_string($code) || !preg_match("/^\s*([A-F0-9]{2}(?:-[A-F0-9]{2}){3,5})\s*$/m", $code, $match) )
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return 127;
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/* (3) Extract only code */
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$code = $match[1];
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/* [2] Return card code
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=========================================================*/
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slog("read $code code", 'mfrc522:read');
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return $code;
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}
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echo mfrc522_read();
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?>
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