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run code in 150+ php & hhvm versions
Bugs & Features
<?php class TestFilterClass { function filter($in, $out) { while (true) { $bucket = stream_bucket_make_writeable($in); if (is_object($bucket)) { $bucket->data = sprintf('[%s] %s', __METHOD__, $bucket->data); stream_bucket_append($out, $bucket); } break; } return PSFS_PASS_ON; } } if (stream_filter_register('TestFilter', 'TestFilterClass')) { $handle = stream_filter_append(STDOUT, 'TestFilter'); if (is_resource($handle)) { fwrite(STDOUT, 'hello world' . PHP_EOL); // ok echo 'hello world' . PHP_EOL; // nope stream_filter_remove($handle); } }
Output for 5.2.3 - 5.6.28, 7.0.0 - 7.1.0
[TestFilterClass::filter] hello world hello world
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Unknown method TestFilterClass::onCreate in /in/EWeCr on line 25
Process exited with code 255.
Output for 5.0.0 - 5.2.2
Notice: Use of undefined constant STDOUT - assumed 'STDOUT' in /in/EWeCr on line 25 Warning: stream_filter_append() expects parameter 1 to be resource, string given in /in/EWeCr on line 25
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: stream_filter_register() in /in/EWeCr on line 23
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: stream_filter_register() in /in/EWeCr on line 23
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: stream_filter_register() in /in/EWeCr on line 23