Kann mir jemand sagen was das bedeutet und für was die ewig lange Zeichenkette steht?:
case 'logo.gif':
header("Content-type: image/gif");
header("Content-length: 2850");
echo base64_decode(
'R0lGODlhggBXAPcAAAAAAAAAMwAAZgAAmQAAzAAA/wAzAAAzMwAzZgAzmQAzzAAz/wBmAA'.
'BmMwBmZgBmmQBmzABm/wCZAACZMwCZZgCZmQCZzACZ/wDMAADMMwDMZgDMmQDMzADM/wD/'.
'AAD/MwD/ZgD/mQD/zAD//zMAADMAMzMAZjMAmTMAzDMA/zMzADMzMzMzZjMzmTMzzDMz/z'.
'NmADNmMzNmZjNmmTNmzDNm/zOZADOZMzOZZjOZmTOZzDOZ/zPMADPMMzPMZjPMmTPMzDPM'.
'/zP/ADP/MzP/ZjP/mTP/zDP//2YAAGYAM2YAZmYAmWYAzGYA/2YzAGYzM2YzZmYzmWYzzG'.
'Yz/2ZmAGZmM2ZmZmZmmWZmzGZm/2aZAGaZM2aZZmaZmWaZzGaZ/2bMAGbMM2bMZmbMmWbM'.
'zGbM/2b/AGb/M2b/Zmb/mWb/zGb//5kAAJkAM5kAZpkAmZkAzJkA/5kzAJkzM5kzZpkzmZ'.
'kzzJkz/5lmAJlmM5lmZplmmZlmzJlm/5mZAJmZM5mZZpmZmZmZzJmZ/5nMAJnMM5nMZpnM'.
'mZnMzJnM/5n/AJn/M5n/Zpn/mZn/zJn//8wAAMwAM8wAZswAmcwAzMwA/8wzAMwzM8wzZs'.
'wzmcwzzMwz/8xmAMxmM8xmZsxmmcxmzMxm/8yZAMyZM8yZZsyZmcyZzMyZ/8zMAMzMM8zM'.
'ZszMmczMzMzM/8z/AMz/M8z/Zsz/mcz/zMz///8AAP8AM/8AZv8Amf8AzP8A//8zAP8zM/'.
'8zZv8zmf8zzP8z//9mAP9mM/9mZv9mmf9mzP9m//+ZAP+ZM/+ZZv+Zmf+ZzP+Z///MAP/M'.
'M//MZv/Mmf/MzP/M////AP//M///Zv//mf//zP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAA'.
'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'.
'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAK'.
'0ALAAAAACCAFcAQAj+AFsJHEiwoMGDCBMqXMiwocOHECNKnEixosWLCmNwOcTqWjRZrAId'.
'4hLjRgwGKFOqXMmypcuXKE/G0MglkE2bXEhijBhDDKuQJGEKHUq0qFGjMawEyhmDYgyRQY'.
'8esgKgqtWrWKtaOXQy5Y1AK65udVkT69KVU7OqFctq6EwrVpomjLEn6lEGS7GOVNkT7NUV'.
'OWOyCru2sFUrXFaK2WM2ccqerLIGEoN0xQq5BmdCmWm07NWlEo7GOES46gquLb+WBnC6K0'.
'rPhw/dJRpjhQHWDg3Ytvwyp++cN2bf+O07eGriXEzyRZ58dsuZlqsa2ElQt1XLl51rRzp8'.
'xc+4yUv+Jj1kwBQrpWBXLN1zjQtg77LAvjWJmfpEA/gNSwdwO6yBEv3xt59+ls301kzhXT'.
'bTDQMZaCB9BsalUUn2VWjhhRhmqOGGHF5I008g/gQSiKYcItJNJtqU4okhsVJiSIeUiJNO'.
'HWI0Wkc/cWHFdjz2+FJSNd1U305PheSaWyYlKZ6SDBz5nJJJvgSleCwtaSWTRb0VSFwOPR'.
'WIk0WlddVeKtV023WBGDfaak+ByQBsWgWCFlVXmWJcSnBWNZVbSV2GUFIS3pWXfn9t5Zhg'.
'q5022VKT1WTiaogdmROhhbLCRWhHRbdCRtgRlacVlIl2CBR/pZmaX9eh5hWqcfq4Um3+0l'.
'V0ZoGu1kqUSTlZhtiWu7mH3WXDWfHrClZAoRtcvNo2pIX5/YUdZ27a+ioXBgRyDVhc7AHX'.
'f8IGIstmgMlnxbUalYCgTbX9NFON7Lbr7rvwxivvvPTWa++9TomXHHPE3WCFkvjWOFwgrM'.
'jyUTQ/pUiSgU322JWBOgapooxpLhvwVwVfw8pIcUnr8XM53bTUuuxiDNLCH6e8HYJK0Ugd'.
'xiOrLPPHM9mE2EQamWKqUTeMWtsK4F6mK7IiubkU0LqSydJ5v1rRlko9Cys00D8TS7QY0f'.
'JlRV0WGxRk1lKacqZWIT6alVKYvhnIVSXs/Cppf7Fy5A2RxQ2i2VidRhv+XF23AuSOs8XA'.
'Sgl/ybZSnuoZlydU+zYupmluM0A3VoKzdIPYhYPNF9B/8h24LHmLHIi2WXl3aJ6Uonmn5K'.
'yyJvHodBZ+KG27HfRWx0gNljd2cCmV8Op4rv3Z7I+JETtrZ626Gmu8I/u7drXd1vfPmj8G'.
't+p3fWo4S3CWENiqxyfu8c/8TceQZQaAPRpVhOsWuadgBagUWcIT9n1MYgIofq3k4yaRbc'.
'yr3sx6JIElKamASQpOVxLoIKkRC2AXaRZvBDhAoQyHWtZKz2V6JyyNnUcpScERsU4TDS5A'.
'oXkrYFCFmsWfEtCKgjIbTrWulcKSNClYK7gWAKxgCqdZ5if+gNGRrjqiMSukr10xwM/YrP'.
'If3TxLQTJp2MNiQsUoOmhqtTEiwa5lE6alazA3CGNOyiMLuBALJCIzEoUCZjuB7EaJSrQN'.
'ft64Kb8xpCkFbIUECLLHOwqkKXLpGxsHSchCGvKQiEykIhfJyEY68pGQjKQkIVkSR4mEIx'.
'z5CcF+Yh5OcqREFFPYwibZpeFwxGAgGdHGZvSvpDjolbD8F2JeR7AYnWhkkjRlR1S5lIXB'.
'0EcyiZjIdIbLQn7lENfwIMc4U8HAIYiWLpMXxq6BRtw1k2Y0uUk0OaSREKHsmuA8F04EaZ'.
'FuapKZ4Eznq3a1JXJC5EamCI865+kSLXHtIjX+AQo99ykULcFlIhjTEc+gQlAT1aQmYgBO'.
'bwxqIhMBD08mEgNUDrG60RD0ogcdiTxh8hYdWQEiQSLeUFC3FvdRdCVfiUGpHio5ViyxNW'.
'USHqF0s4eTchRQJFuIkO6yprwBAEBrIdbs4GSA+bXkcVV5n+7+whrDiIRPfFvIQZ2zuOaY'.
'RCSkWin+EmVTlC7VNNt7jUyTKpvgHPN4yGPpq2IAhY8mpCbWPIrc4uYk1WhVcpiLjUuQCo'.
'DkpQSp3qlr3bDnlhG+dUvOmdxn5DQnrIwFJUj1Hk4mazOuSioQS9xDqFRik7w9jTYntJhG'.
'4OKcr7LGUmE0ZetYo6qvpG4tfoX+bPhQK0a8XUdulbGN7RADuKMo9rU7jC1f4dJW4vZuef'.
'sT6/J+ahj1MDa35jNI72bD18IQKyTA65ljURODAkpObZAiXnWD6rT30QZWc9nML7+yRKcl'.
'7BAGVats2aa0lWzpL81RHlveq1H5ZokwChkhDAFrXgter1UtMZNYnvsaI6JJpMAE8EIKJE'.
'C7HuZLdyEwhBlA4NVZGKy/LCxhohtgWgllS2Nr24al1DqYWq51aIsp2+7nquiVDyIrcCFM'.
'vrIU3hYte1Ph7VSPajPE1FS8W/Loj2scHf5MxDYuDDE/h6JA7/LlOXz5WRPduRDCdWrK2k'.
'kSU4S2IAhFcTiv5CD+mXNKEf+wJolSnmcl3eNeFxnsS1wAQDLl1hP3WOsaI1RPiDoCFozI'.
'0TS8AbOUNEIsGtIkenGxgiz2kORidXEwYEGYUJmSPi7nZmxORKei0Twu0gRFzO75SVEHw0'.
'P1XAMu1LJCNDSWLJNkKIlXcWJ24uyq7mQQMP7y19YabQUXdsSIOfzSv3yTRFcPRnIdUiJW'.
'/vPEKNKsSYyGQhHjYhljGZEV0Sjqz/wcDb5ZzZUrYI98PG2hQ2elP00cFpnnXZuqYUc3TU'.
'R0t9Gzh3pn0YgPUqkZbzC00XkUimxsCr4FBNzCwJsg+hLPuuhjO1t3tyStTBIp68XujXv8'.
'4yAPucgHR05yRgYEAAA7');
break;
case 'logo.gif':
header("Content-type: image/gif");
header("Content-length: 2850");
echo base64_decode(
'R0lGODlhggBXAPcAAAAAAAAAMwAAZgAAmQAAzAAA/wAzAAAzMwAzZgAzmQAzzAAz/wBmAA'.
'BmMwBmZgBmmQBmzABm/wCZAACZMwCZZgCZmQCZzACZ/wDMAADMMwDMZgDMmQDMzADM/wD/'.
'AAD/MwD/ZgD/mQD/zAD//zMAADMAMzMAZjMAmTMAzDMA/zMzADMzMzMzZjMzmTMzzDMz/z'.
'NmADNmMzNmZjNmmTNmzDNm/zOZADOZMzOZZjOZmTOZzDOZ/zPMADPMMzPMZjPMmTPMzDPM'.
'/zP/ADP/MzP/ZjP/mTP/zDP//2YAAGYAM2YAZmYAmWYAzGYA/2YzAGYzM2YzZmYzmWYzzG'.
'Yz/2ZmAGZmM2ZmZmZmmWZmzGZm/2aZAGaZM2aZZmaZmWaZzGaZ/2bMAGbMM2bMZmbMmWbM'.
'zGbM/2b/AGb/M2b/Zmb/mWb/zGb//5kAAJkAM5kAZpkAmZkAzJkA/5kzAJkzM5kzZpkzmZ'.
'kzzJkz/5lmAJlmM5lmZplmmZlmzJlm/5mZAJmZM5mZZpmZmZmZzJmZ/5nMAJnMM5nMZpnM'.
'mZnMzJnM/5n/AJn/M5n/Zpn/mZn/zJn//8wAAMwAM8wAZswAmcwAzMwA/8wzAMwzM8wzZs'.
'wzmcwzzMwz/8xmAMxmM8xmZsxmmcxmzMxm/8yZAMyZM8yZZsyZmcyZzMyZ/8zMAMzMM8zM'.
'ZszMmczMzMzM/8z/AMz/M8z/Zsz/mcz/zMz///8AAP8AM/8AZv8Amf8AzP8A//8zAP8zM/'.
'8zZv8zmf8zzP8z//9mAP9mM/9mZv9mmf9mzP9m//+ZAP+ZM/+ZZv+Zmf+ZzP+Z///MAP/M'.
'M//MZv/Mmf/MzP/M////AP//M///Zv//mf//zP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAA'.
'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'.
'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAK'.
'0ALAAAAACCAFcAQAj+AFsJHEiwoMGDCBMqXMiwocOHECNKnEixosWLCmNwOcTqWjRZrAId'.
'4hLjRgwGKFOqXMmypcuXKE/G0MglkE2bXEhijBhDDKuQJGEKHUq0qFGjMawEyhmDYgyRQY'.
'8esgKgqtWrWKtaOXQy5Y1AK65udVkT69KVU7OqFctq6EwrVpomjLEn6lEGS7GOVNkT7NUV'.
'OWOyCru2sFUrXFaK2WM2ccqerLIGEoN0xQq5BmdCmWm07NWlEo7GOES46gquLb+WBnC6K0'.
'rPhw/dJRpjhQHWDg3Ytvwyp++cN2bf+O07eGriXEzyRZ58dsuZlqsa2ElQt1XLl51rRzp8'.
'xc+4yUv+Jj1kwBQrpWBXLN1zjQtg77LAvjWJmfpEA/gNSwdwO6yBEv3xt59+ls301kzhXT'.
'bTDQMZaCB9BsalUUn2VWjhhRhmqOGGHF5I008g/gQSiKYcItJNJtqU4okhsVJiSIeUiJNO'.
'HWI0Wkc/cWHFdjz2+FJSNd1U305PheSaWyYlKZ6SDBz5nJJJvgSleCwtaSWTRb0VSFwOPR'.
'WIk0WlddVeKtV023WBGDfaak+ByQBsWgWCFlVXmWJcSnBWNZVbSV2GUFIS3pWXfn9t5Zhg'.
'q5022VKT1WTiaogdmROhhbLCRWhHRbdCRtgRlacVlIl2CBR/pZmaX9eh5hWqcfq4Um3+0l'.
'V0ZoGu1kqUSTlZhtiWu7mH3WXDWfHrClZAoRtcvNo2pIX5/YUdZ27a+ioXBgRyDVhc7AHX'.
'f8IGIstmgMlnxbUalYCgTbX9NFON7Lbr7rvwxivvvPTWa++9TomXHHPE3WCFkvjWOFwgrM'.
'jyUTQ/pUiSgU322JWBOgapooxpLhvwVwVfw8pIcUnr8XM53bTUuuxiDNLCH6e8HYJK0Ugd'.
'xiOrLPPHM9mE2EQamWKqUTeMWtsK4F6mK7IiubkU0LqSydJ5v1rRlko9Cys00D8TS7QY0f'.
'JlRV0WGxRk1lKacqZWIT6alVKYvhnIVSXs/Cppf7Fy5A2RxQ2i2VidRhv+XF23AuSOs8XA'.
'Sgl/ybZSnuoZlydU+zYupmluM0A3VoKzdIPYhYPNF9B/8h24LHmLHIi2WXl3aJ6Uonmn5K'.
'yyJvHodBZ+KG27HfRWx0gNljd2cCmV8Op4rv3Z7I+JETtrZ626Gmu8I/u7drXd1vfPmj8G'.
't+p3fWo4S3CWENiqxyfu8c/8TceQZQaAPRpVhOsWuadgBagUWcIT9n1MYgIofq3k4yaRbc'.
'yr3sx6JIElKamASQpOVxLoIKkRC2AXaRZvBDhAoQyHWtZKz2V6JyyNnUcpScERsU4TDS5A'.
'oXkrYFCFmsWfEtCKgjIbTrWulcKSNClYK7gWAKxgCqdZ5if+gNGRrjqiMSukr10xwM/YrP'.
'If3TxLQTJp2MNiQsUoOmhqtTEiwa5lE6alazA3CGNOyiMLuBALJCIzEoUCZjuB7EaJSrQN'.
'ft64Kb8xpCkFbIUECLLHOwqkKXLpGxsHSchCGvKQiEykIhfJyEY68pGQjKQkIVkSR4mEIx'.
'z5CcF+Yh5OcqREFFPYwibZpeFwxGAgGdHGZvSvpDjolbD8F2JeR7AYnWhkkjRlR1S5lIXB'.
'0EcyiZjIdIbLQn7lENfwIMc4U8HAIYiWLpMXxq6BRtw1k2Y0uUk0OaSREKHsmuA8F04EaZ'.
'FuapKZ4Eznq3a1JXJC5EamCI865+kSLXHtIjX+AQo99ykULcFlIhjTEc+gQlAT1aQmYgBO'.
'bwxqIhMBD08mEgNUDrG60RD0ogcdiTxh8hYdWQEiQSLeUFC3FvdRdCVfiUGpHio5ViyxNW'.
'USHqF0s4eTchRQJFuIkO6yprwBAEBrIdbs4GSA+bXkcVV5n+7+whrDiIRPfFvIQZ2zuOaY'.
'RCSkWin+EmVTlC7VNNt7jUyTKpvgHPN4yGPpq2IAhY8mpCbWPIrc4uYk1WhVcpiLjUuQCo'.
'DkpQSp3qlr3bDnlhG+dUvOmdxn5DQnrIwFJUj1Hk4mazOuSioQS9xDqFRik7w9jTYntJhG'.
'4OKcr7LGUmE0ZetYo6qvpG4tfoX+bPhQK0a8XUdulbGN7RADuKMo9rU7jC1f4dJW4vZuef'.
'sT6/J+ahj1MDa35jNI72bD18IQKyTA65ljURODAkpObZAiXnWD6rT30QZWc9nML7+yRKcl'.
'7BAGVats2aa0lWzpL81RHlveq1H5ZokwChkhDAFrXgter1UtMZNYnvsaI6JJpMAE8EIKJE'.
'C7HuZLdyEwhBlA4NVZGKy/LCxhohtgWgllS2Nr24al1DqYWq51aIsp2+7nquiVDyIrcCFM'.
'vrIU3hYte1Ph7VSPajPE1FS8W/Loj2scHf5MxDYuDDE/h6JA7/LlOXz5WRPduRDCdWrK2k'.
'kSU4S2IAhFcTiv5CD+mXNKEf+wJolSnmcl3eNeFxnsS1wAQDLl1hP3WOsaI1RPiDoCFozI'.
'0TS8AbOUNEIsGtIkenGxgiz2kORidXEwYEGYUJmSPi7nZmxORKei0Twu0gRFzO75SVEHw0'.
'P1XAMu1LJCNDSWLJNkKIlXcWJ24uyq7mQQMP7y19YabQUXdsSIOfzSv3yTRFcPRnIdUiJW'.
'/vPEKNKsSYyGQhHjYhljGZEV0Sjqz/wcDb5ZzZUrYI98PG2hQ2elP00cFpnnXZuqYUc3TU'.
'R0t9Gzh3pn0YgPUqkZbzC00XkUimxsCr4FBNzCwJsg+hLPuuhjO1t3tyStTBIp68XujXv8'.
'4yAPucgHR05yRgYEAAA7');
break;
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