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<?php $varToFilter = 2555; $test = ''; if (is_int($varToFilter)) { $test = filter_var($varToFilter, FILTER_SANITIZE_INT); } var_dump($test);
based on QIbch
Output for 7.0.0 - 7.1.0
Notice: Use of undefined constant FILTER_SANITIZE_INT - assumed 'FILTER_SANITIZE_INT' in /in/oMsNG on line 7 Warning: filter_var() expects parameter 2 to be integer, string given in /in/oMsNG on line 7 NULL
Output for 5.2.0 - 5.6.28
Notice: Use of undefined constant FILTER_SANITIZE_INT - assumed 'FILTER_SANITIZE_INT' in /in/oMsNG on line 7 Warning: filter_var() expects parameter 2 to be long, string given in /in/oMsNG on line 7 NULL
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function filter_var() in /in/oMsNG on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: filter_var() in /in/oMsNG on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: filter_var() in /in/oMsNG on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: filter_var() in /in/oMsNG on line 7