Online PHP editor | perf for eKaHL

<?php class StringStreamWrapper { const PROTOCOL = "stringstream"; private $stringstream; private $position; private $stringlength; public function stream_open($path, $mode, $options, &$opened_path) { $contextOptions = stream_context_get_options($this->context); if (!isset($contextOptions[self::PROTOCOL]['string'])) return false; $this->position = 0; // this is our stream! $this->stringstream = $contextOptions[self::PROTOCOL]['string']; $this->stringlength = strlen($this->stringstream); return true; } public function stream_read($len) { $data = substr($this->stringstream, $this->position, $len); $this->position += strlen($data); return $data; } public function stream_write($data){ $l = strlen($data); $this->stringstream = substr($this->stringstream, 0, $this->position) . $data . substr($this->stringstream, $this->position += $l); $this->stringlength = strlen($this->stringstream); return $l; } public function stream_seek($offset, $whence = SEEK_SET) { if ($whence == SEEK_CUR) { $this->position += $offset; } else if ($whence == SEEK_END) { $this->position = $this->stringlength + $offset; } else { $this->position = $offset; } return true; } public function stream_tell() { return $this->position; } public function stream_eof() { return ($this->position >= $this->stringlength); } public function stream_stat() { return array( 7 => $this->stringlength, 'size' => $this->stringlength, ); } static public function Open($string) { $context = stream_context_create(array(self::PROTOCOL => array('string' => &$string))); return fopen(self::PROTOCOL . "://",'r', false, $context); } } stream_wrapper_register(StringStreamWrapper::PROTOCOL, "StringStreamWrapper"); ####################################### $testString = 'test'; echo "base64_encode = " . base64_encode($testString).PHP_EOL; ####################################### # put data in the StringStreamWrapper $stringstream = StringStreamWrapper::Open($testString); # get the output stream (as z-push does) $output = fopen("php://output", "w+"); # attach write filter to output $filter = stream_filter_append($output, 'convert.base64-encode'); echo "outputstream = "; # write to output $bytes = stream_copy_to_stream($stringstream, $output); write($output, \0); echo "\n wrote $bytes";

Version	System time (s)	User time (s)	Memory (MiB)
5.6.16	0.010	0.083	20.54
5.6.15	0.003	0.077	18.29
5.6.14	0.007	0.073	18.29
5.6.13	0.013	0.073	18.13
5.6.12	0.007	0.040	21.00
5.6.11	0.000	0.073	21.11
5.6.10	0.007	0.037	21.00
5.6.9	0.010	0.080	21.02
5.6.8	0.003	0.037	20.41
5.5.30	0.003	0.077	17.95
5.5.29	0.010	0.083	17.97
5.5.28	0.003	0.053	20.83
5.5.27	0.013	0.073	20.88
5.5.26	0.003	0.083	20.69
5.5.25	0.007	0.090	20.59
5.5.24	0.020	0.077	20.25