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fix with PHP 7.2 deprecated each( ) construct

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Ralf Becker 2019-03-12 11:10:47 +01:00
parent e43c8f8f19
commit 7ea486b426
1 changed files with 40 additions and 13 deletions
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53
doc/fix_depricated.php
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@ -1,17 +1,14 @@
#!/usr/bin/php -qC #!/usr/bin/php -qC
<?php <?php
/** /**
* EGroupware - fix in 5.3 depricated (in 6 not longer existing) functions and constructs * EGroupware - fix deprecated PHP functions and constructs
* *
* The depricated warnings fill up the log files, as they can not be swichted off in the logs. * The depricated warnings fill up the log files, as they can not be swichted off in the logs.
* The biggest issue are posix regular expressions (ereg, split, ereg_replace) and
* php4 assignment of objects (specially new obj()) by reference.
* *
* @link http://www.egroupware.org * @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @author RalfBecker@outdoor-training.de * @author RalfBecker@outdoor-training.de
* @copyright 2009/10 by RalfBecker@outdoor-training.de * @copyright 2009-19 by RalfBecker@outdoor-training.de
* @version $Id$
*/ */
if (php_sapi_name() !== 'cli') // security precaution: forbit calling as web-page if (php_sapi_name() !== 'cli') // security precaution: forbit calling as web-page
@ -23,7 +20,7 @@ if (php_sapi_name() !== 'cli') // security precaution: forbit calling as web-pag
* Fix depricated stuff in a given file * Fix depricated stuff in a given file
* *
* @param string $file filename * @param string $file filename
* @param boolean $replace_file=false replace existing file if modifications are necessary, otherwise .php53 file is created * @param boolean $replace_file =false replace existing file if modifications are necessary, otherwise .php53 file is created
* @return boolean false on error * @return boolean false on error
*/ */
function fix_depricated($file,$replace_file=false) function fix_depricated($file,$replace_file=false)
@ -33,12 +30,42 @@ function fix_depricated($file,$replace_file=false)
global $prog; global $prog;
if (basename($file) == $prog) return true; // dont fix ourself ;-) if (basename($file) == $prog) return true; // dont fix ourself ;-)
// match "variables" like: $var, $obj->attr, $arr['key']
$variable = '\$[a-z_0-9\[\]\'>-]+';
// list($key) = each($array); --> $key = key($array);
if (preg_match("/each\(($variable)\);/i", $lines))
{
$lines = preg_replace("/list\(($variable)\)\s+=\s+@?each\(($variable)\);/i", '$1 = key($2);', $lines);
// list($key, $val) = each($array); --> $key = key($array); $val = current($array);
if (preg_match("/[^=]+=\s+@?each\(($variable)\);/i", $lines))
{
$lines = preg_replace("/^(\s)*list\(($variable),\s*($variable)\)\s+=\s+@?each\(($variable)\);/mi",
'$1$2 = key($4);$1$3 = current($4);', $lines);
$matches = null;
if (preg_match_all("/^[^=]+=\s+@?each\(($variable)\);/i", $lines, $matches, PREG_PATTERN_ORDER))
{
error_log("Unfixed each(...) constructs: ", implode(' ', $matches[0]));
}
}
}
// count($non_array) --> is_array($non_array) && count($non_array)
/* commented as (in most cases) unnecessary, if argument is garantied to be an array
if (preg_match('/count\((\$[a-z_0-9]+)\)/i', $lines))
{
$lines = preg_replace('/count\((\$[a-z_0-9]+)\)/i', 'is_array($1) && $0', $lines);
}*/
// PHP Deprecated: Assigning the return value of new by reference is deprecated // PHP Deprecated: Assigning the return value of new by reference is deprecated
if (preg_match('/= *& *new /m',$lines)) if (preg_match('/= *& *new /m',$lines))
{ {
$lines = preg_replace('/= *& *new /','= new ',$lines); $lines = preg_replace('/= *& *new /','= new ',$lines);
} }
// PHP Deprecated: Function split() is deprecated // PHP Deprecated: Function split() is deprecated
$matches = null;
if (preg_match_all('/[= \t(]+spliti? *\\(("[^"]*"|\'[^\']*\'),/m',$lines,$matches)) if (preg_match_all('/[= \t(]+spliti? *\\(("[^"]*"|\'[^\']*\'),/m',$lines,$matches))
{ {
$replace = array(); $replace = array();
@ -96,7 +123,6 @@ function fix_depricated($file,$replace_file=false)
foreach($matches[1] as $key => $pattern) foreach($matches[1] as $key => $pattern)
{ {
$full_pattern = $matches[0][$key]; $full_pattern = $matches[0][$key];
$other = $matches[2][$key];
// simple replace --> use str_replace() // simple replace --> use str_replace()
if (preg_quote($pattern) == $pattern) if (preg_quote($pattern) == $pattern)
@ -129,13 +155,14 @@ function fix_depricated($file,$replace_file=false)
if ($lines != $orig) if ($lines != $orig)
{ {
file_put_contents($file.'53',$lines); file_put_contents($file.'.new',$lines);
system('/usr/bin/php -l '.$file.'53',$ret); $ret = null;
system('/usr/bin/diff -u '.$file.' '.$file.'53'); system('/usr/bin/php -l '.$file.'.new',$ret);
system('/usr/bin/diff -u '.$file.' '.$file.'.new');
if (!$ret && $replace_file) if (!$ret && $replace_file)
{ {
unlink($file); unlink($file);
rename($file.'53',$file); rename($file.'.new',$file);
} }
return !$ret; return !$ret;
} }
@ -146,7 +173,7 @@ function fix_depricated($file,$replace_file=false)
* Loop recursive through directory and call fix_depricated for each php file * Loop recursive through directory and call fix_depricated for each php file
* *
* @param string $dir * @param string $dir
* @param boolean $replace_file=false replace existing file if modifications are necessary, otherwise .php53 file is created * @param boolean $replace_file =false replace existing file if modifications are necessary, otherwise .php53 file is created
* @return boolean false on error * @return boolean false on error
*/ */
function fix_depricated_recursive($dir,$replace_file=false) function fix_depricated_recursive($dir,$replace_file=false)
@ -174,7 +201,7 @@ function fix_depricated_recursive($dir,$replace_file=false)
/** /**
* Give usage * Give usage
* *
* @param string $error=null * @param string $error =null
*/ */
function usage($error=null) function usage($error=null)
{ {