1 files changed, 47 insertions, 0 deletions
diff --git a/examples/lib/FilterReplace.php b/examples/lib/FilterReplace.php
new file mode 100644
index 0000000..962555c
--- /dev/null
+++ b/examples/lib/FilterReplace.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace lib;
+
+use php_user_filter;
+
+class FilterReplace extends php_user_filter
+{
+    const FILTER_NAME = 'convert.replace.';
+
+    private $search;
+
+    private $replace;
+
+    public function onCreate()
+    {
+        if( strpos( $this->filtername, self::FILTER_NAME ) !== 0 ){
+            return false;
+        }
+
+        $params = substr( $this->filtername, strlen( self::FILTER_NAME ) );
+
+        if( !preg_match( '/([^:]+):([^$]+)$/', $params, $matches ) ){
+            return false;
+        }
+
+        $this->search  = $matches[1];
+        $this->replace = $matches[2];
+
+        return true;
+    }
+
+    public function filter( $in, $out, &$consumed, $closing )
+    {
+        while( $res = stream_bucket_make_writeable( $in ) ){
+
+            $res->data = str_replace( $this->search, $this->replace, $res->data );
+
+            $consumed += $res->datalen;
+
+            /** @noinspection PhpParamsInspection */
+            stream_bucket_append( $out, $res );
+        }
+
+        return PSFS_PASS_ON;
+    }
+}