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>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) "AAABCvY1TjA3bGLHHK8NF/ANnBENES+c2VydmVySWQ+UEerzJUsgou/b4HlgOp9lFqVOmHWTqev2ECaQPAs9z7ilQWy1YmpxxuOAkymlQNL6JOFJ9FhGcI9WXkphzBIREyfT79itp/RX6uOom6ToCBNdFaGfnM9ZWM37Dq8zQuMfxUXZBS8nfVoDeA7UhhbkMBy0Po2yjI/pvfi73029w71K+8oH0eh9uG9mDtdC97hpLjKEZbrwLFN8AP3wZagMbuUHp6uweGTSvhuVlJ44ZJkqAC7YT4H8CDTQgIol7sy6g8OCgLUek5ZKSZ+2/yDbGHJDnvawmQdxfrxANiKL2cE3LkCKhp9L1gNXxLsxXrBrkR0RU/lax+gT3Tg7S"
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"}