1--TEST-- 2stream filter - reading 3--FILE-- 4<?php 5echo "-TEST\n"; 6class strtoupper_filter extends php_user_filter { 7 function filter($in, $out, &$consumed, $closing): int 8 { 9 $output = 0; 10 while ($bucket = stream_bucket_make_writeable($in)) { 11 $bucket->data = strtoupper($bucket->data); 12 $consumed += $bucket->datalen; 13 stream_bucket_append($out, $bucket); 14 $output = 1; 15 } 16 if ($closing) { 17 $bucket = stream_bucket_new($this->stream, "\n===close===\n"); 18 stream_bucket_append($out, $bucket); 19 $output = 1; 20 } 21 return $output ? PSFS_PASS_ON : PSFS_FEED_ME; 22 } 23} 24stream_filter_register("strtoupper", "strtoupper_filter") 25 or die("Failed to register filter"); 26 27if ($f = fopen(__FILE__, "rb")) { 28 stream_filter_append($f, "strtoupper"); 29 while (!feof($f)) { 30 echo fread($f, 8192); 31 } 32 fclose($f); 33} 34echo "Done\n"; 35?> 36--EXPECTF-- 37%sTEST 38<?PHP 39ECHO "-TEST\N"; 40CLASS STRTOUPPER_FILTER EXTENDS PHP_USER_FILTER { 41 FUNCTION FILTER($IN, $OUT, &$CONSUMED, $CLOSING): INT 42 { 43 $OUTPUT = 0; 44 WHILE ($BUCKET = STREAM_BUCKET_MAKE_WRITEABLE($IN)) { 45 $BUCKET->DATA = STRTOUPPER($BUCKET->DATA); 46 $CONSUMED += $BUCKET->DATALEN; 47 STREAM_BUCKET_APPEND($OUT, $BUCKET); 48 $OUTPUT = 1; 49 } 50 IF ($CLOSING) { 51 $BUCKET = STREAM_BUCKET_NEW($THIS->STREAM, "\N===CLOSE===\N"); 52 STREAM_BUCKET_APPEND($OUT, $BUCKET); 53 $OUTPUT = 1; 54 } 55 RETURN $OUTPUT ? PSFS_PASS_ON : PSFS_FEED_ME; 56 } 57} 58STREAM_FILTER_REGISTER("STRTOUPPER", "STRTOUPPER_FILTER") 59 OR DIE("FAILED TO REGISTER FILTER"); 60 61IF ($F = FOPEN(__FILE__, "RB")) { 62 STREAM_FILTER_APPEND($F, "STRTOUPPER"); 63 WHILE (!FEOF($F)) { 64 ECHO FREAD($F, 8192); 65 } 66 FCLOSE($F); 67} 68ECHO "DONE\N"; 69?> 70 71===close=== 72Done 73
