Tuesday 23 August 2011 7:10:24 am

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Description

eZ 4.4  has to be used with PHP 5.2 at least. With the major version 5.3, namespaces became available in PHP. Unfortunatly we can't use them in eZ Publish.

Whether eZ Core classes use namespaces or not, developpers can't also use them whereas there isn't much to do to make namespaces available.

We only need to add few lines in the file 'kernel/private/classes/ezautoloadgenerator.php'. Using the php function token_get_all provides an array with parsed elements of the file.

For a namespace, PHP use the constant T_NAMESPACE. To ensure that our code is compatible in PHP 5.2, we need to define the constant in that version. To do such thing, we only need to add line 436 the following code :

               $this->setStatArray( self::OUTPUT_PROGRESS_PHASE2, $statArray );
               $this->startProgressOutput( self::OUTPUT_PROGRESS_PHASE2 );

+               $aPhpVersion = explode('.', phpversion());
+               if ($aPhpVersion[1] 3)
+              {
+                       !defined('T_NAMESPACE') && define('T_NAMESPACE', 377);
+               }

               foreach( $fileList as $file )

For each file we set a namespace variable to an empty string :

+                         $sNameSpace = '';
                       $tokens = @token_get_all( file_get_contents( $file ) );

Then we get the namespace in the switch

                                         switch( $token[0] )
                                       {
+                                               case T_NAMESPACE:
+                                                       $sNameSpace = '';
+                                                       for ($i = $key+2; $i count($tokens)-1; $i++)
+                                                       {
+                                                               if (is_array($tokens[$i]) && T_STRING == $tokens[$i][0])
+                                                               {
+                                                                       $sNameSpace .= $tokens[$i][1].'\\';
+                                                               }
+                                                               else if (!is_array($tokens[$i]) && in_array($tokens[$i], array(';', '{')))
+                                                               {
+                                                                       break;
+                                                               }
+                                                       }
+                                                       break;

And finally we add the namespace before the class name, the autoload function will automaticly load the class

-                                                         $className = $tokens[$key+2][1];
+                                                       $className = $sNameSpace.$tokens[$key+2][1];

What do you think about it ?

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eZ debug

Timing: Jan 29 2025 14:43:22
Script start
Timing: Jan 29 2025 14:43:22
Module start 'layout'
Timing: Jan 29 2025 14:43:22
Module start 'content'
Timing: Jan 29 2025 14:43:22
Module end 'content'
Timing: Jan 29 2025 14:43:22
Script end

Main resources:

Total runtime0.0187 sec
Peak memory usage2,048.0000 KB
Database Queries3

Timing points:

CheckpointStart (sec)Duration (sec)Memory at start (KB)Memory used (KB)
Script start 0.00000.0069 588.1250151.2109
Module start 'layout' 0.00690.0036 739.335936.6563
Module start 'content' 0.01040.0065 775.9922114.5156
Module end 'content' 0.01690.0017 890.507849.9766
Script end 0.0186  940.4844 

Time accumulators:

 Accumulator Duration (sec) Duration (%) Count Average (sec)
Ini load
Load cache0.002714.5287140.0002
Check MTime0.00115.8764140.0001
Mysql Total
Database connection0.00094.839910.0009
Mysqli_queries0.004121.849330.0014
Looping result0.00000.107410.0000
Template Total0.00136.910.0013
Template load0.00105.178610.0010
Template processing0.00031.678110.0003
Override
Cache load0.00073.505710.0007
General
dbfile0.00147.557080.0002
String conversion0.00000.043540.0000
Note: percentages do not add up to 100% because some accumulators overlap

Templates used to render the page:

UsageRequested templateTemplateTemplate loadedEditOverride
1print_pagelayout.tpl<No override>extension/community/design/community/templates/print_pagelayout.tplEdit templateOverride template
 Number of times templates used: 1
 Number of unique templates used: 1

Time used to render debug report: 0.0001 secs