Remove some unnecessary function_exists() checks and some minor improvements
diff --git a/system/core/Output.php b/system/core/Output.php
index 0bf9822..5588ffe 100755
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -370,7 +370,7 @@
if ($this->parse_exec_vars === TRUE)
{
- $memory = function_exists('memory_get_usage') ? round(memory_get_usage()/1024/1024, 2).'MB' : '0';
+ $memory = round(memory_get_usage() / 1024 / 1024, 2).'MB';
$output = str_replace(array('{elapsed_time}', '{memory_usage}'), array($elapsed, $memory), $output);
}
diff --git a/system/helpers/path_helper.php b/system/helpers/path_helper.php
index 1341054..fec4a1a 100644
--- a/system/helpers/path_helper.php
+++ b/system/helpers/path_helper.php
@@ -55,7 +55,7 @@
}
// Resolve the path
- if (function_exists('realpath') && @realpath($path) !== FALSE)
+ if (@realpath($path) !== FALSE)
{
$path = realpath($path);
}
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index aaac0c5..d96088c 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -402,7 +402,7 @@
."\n"
.'<legend style="color:#5a0099;"> '.$this->CI->lang->line('profiler_memory_usage')." </legend>\n"
.'<div style="color:#5a0099;font-weight:normal;padding:4px 0 4px 0;">'
- .((function_exists('memory_get_usage') && ($usage = memory_get_usage()) !== '') ? number_format($usage).' bytes' : $this->CI->lang->line('profiler_no_memory'))
+ .(($usage = memory_get_usage()) != '' ? number_format($usage).' bytes' : $this->CI->lang->line('profiler_no_memory'))
.'</div></fieldset>';
}
diff --git a/system/libraries/Unit_test.php b/system/libraries/Unit_test.php
index a87cf7e..70ad8dc 100644
--- a/system/libraries/Unit_test.php
+++ b/system/libraries/Unit_test.php
@@ -124,7 +124,7 @@
$this->results[] = $report;
- return($this->report($this->result($report)));
+ return $this->report($this->result($report));
}
// --------------------------------------------------------------------
@@ -289,15 +289,11 @@
*/
protected function _backtrace()
{
- if (function_exists('debug_backtrace'))
- {
- $back = debug_backtrace();
- return array(
- 'file' => (isset($back[1]['file']) ? $back[1]['file'] : ''),
- 'line' => (isset($back[1]['line']) ? $back[1]['line'] : '')
- );
- }
- return array('file' => 'Unknown', 'line' => 'Unknown');
+ $back = debug_backtrace();
+ return array(
+ 'file' => (isset($back[1]['file']) ? $back[1]['file'] : ''),
+ 'line' => (isset($back[1]['line']) ? $back[1]['line'] : '')
+ );
}
// --------------------------------------------------------------------
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index c1e07de..1f6aeeb 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -694,7 +694,7 @@
return FALSE;
}
- if (function_exists('realpath') && @realpath($this->upload_path) !== FALSE)
+ if (@realpath($this->upload_path) !== FALSE)
{
$this->upload_path = str_replace('\\', '/', realpath($this->upload_path));
}
@@ -815,17 +815,17 @@
return FALSE;
}
- if (function_exists('memory_get_usage') && memory_get_usage() && ini_get('memory_limit'))
+ if (memory_get_usage() && ($memory_limit = ini_get('memory_limit')))
{
- $current = ini_get('memory_limit') * 1024 * 1024;
+ $memory_limit *= 1024 * 1024;
// There was a bug/behavioural change in PHP 5.2, where numbers over one million get output
// into scientific notation. number_format() ensures this number is an integer
// http://bugs.php.net/bug.php?id=43053
- $new_memory = number_format(ceil(filesize($file) + $current), 0, '.', '');
+ $memory_limit = number_format(ceil(filesize($file) + $memory_limit), 0, '.', '');
- ini_set('memory_limit', $new_memory); // When an integer is used, the value is measured in bytes. - PHP.net
+ ini_set('memory_limit', $memory_limit); // When an integer is used, the value is measured in bytes. - PHP.net
}
// If the file being uploaded is an image, then we should have no problem with XSS attacks (in theory), but
@@ -849,14 +849,8 @@
// <a, <body, <head, <html, <img, <plaintext, <pre, <script, <table, <title
// title is basically just in SVG, but we filter it anyhow
- if ( ! preg_match('/<(a|body|head|html|img|plaintext|pre|script|table|title)[\s>]/i', $opening_bytes))
- {
- return TRUE; // its an image, no "triggers" detected in the first 256 bytes, we're good
- }
- else
- {
- return FALSE;
- }
+ // if its an image or no "triggers" detected in the first 256 bytes - we're good
+ return ! preg_match('/<(a|body|head|html|img|plaintext|pre|script|table|title)[\s>]/i', $opening_bytes);
}
if (($data = @file_get_contents($file)) === FALSE)