NULL
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<b>Notice</b>:  Trying to access array offset on value of type null in <b>/var/www/html/index.php</b> on line <b>47</b><br />
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<b>Notice</b>:  Trying to access array offset on value of type null in <b>/var/www/html/index.php</b> on line <b>48</b><br />
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<b>Notice</b>:  Undefined variable: message in <b>/var/www/html/index.php</b> on line <b>56</b><br />
string(381) "AAABCBjLHx3dfqSOpoDlp2lOK+fFNN+c2VydmVySWQ+FNykcaln0A048cr3txizpvzqJBlU4VHts5NDB/c/VQXIoZ4J2yyNxM1a4JEG/FI2EvPGefifRw+B9j1ugMWFJc+o0b5v/z+tcBoRbZvePiEv0Z4G39BbU+gt7MiPHUfZEp0CVuqsGNBYUcHs0jLWohKG8RptZzJOnhAb+0evt0GWFJzg7aMpIgeFePCiJ/aYtlrtOSpsvsGkYl4cfecDviHr55j3qafMtbMsh4v6H8ctAZkakh5PMbXQrD/ugdOtES7dx1cFDznlx41t1x/Ifk1eEoskfzRCClzO+9aZE3eLofgQMouDzl/nerVDTVmpxo2aOLfbqYtEVrnxEL"
string(22) "--テキスト送信--"
string(63) "{"accountId":null,"content":{"type":"text","text":"rich menu"}}"
{"code":"NOT_FOUND","domain":"common","message":"Api not exists"}