[10][20][30]<hr><br />
<b>Notice</b>:  Use of undefined constant a - assumed 'a' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>11</b><br />
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<b>Notice</b>:  Use of undefined constant r - assumed 'r' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>11</b><br />
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<b>Notice</b>:  Use of undefined constant t - assumed 't' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>11</b><br />
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<b>Notice</b>:  Use of undefined constant r - assumed 'r' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>12</b><br />
<br />
<b>Notice</b>:  Use of undefined constant r - assumed 'r' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>12</b><br />
<br />
<b>Notice</b>:  Use of undefined constant t - assumed 't' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>13</b><br />
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<b>Notice</b>:  Use of undefined constant r - assumed 'r' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>13</b><br />
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<b>Notice</b>:  Use of undefined constant a - assumed 'a' in <b>/var/www/html/_COREPHP/Tema21/test-2.php</b> on line <b>13</b><br />
[a][r][t]</br>[r][5][r]</br>[t][r][a]</br>