| CompressionData compression and file archive manipulation. | 
| Top 3 best rated classes of Compression group
| Rank | Class | Author | Rating |  
| 11 | lezaz Template engine that compiles tags into PHP code
 | bassam alessawi | 81.67% |  
| 67 | PHP Application Packer Create packages of project files for distribution
 | Vallo Reima | 75.83% |  
| 167 | dUnzip2 Pack and unpack files packed in ZIP archives
 | Alexandre Tedeschi (d) | 72.54% |  
 | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 78% | 67% | - | - | - | - | 46% | 3264 | 
| Month: | Not yet rated by the users | 
| 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank |  
| All time: | 87% | 87% | 79% | 83% | - | - | 68% | 388 |  
| Month: | Not yet rated by the users |  | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 58% | 58% | 58% | 50% | - | - | 45% | 3291 | 
| Month: | Not yet rated by the users | 
| 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank |  
| All time: | 66% | 83% | - | 79% | - | - | 49% | 2830 |  
| Month: | Not yet rated by the users |  | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 83% | 82% | - | 77% | - | - | 57% | 1593 | 
| Month: | Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 75% | 75% | - | - | - | - | 45% | 3406 | 
| Month: | Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 80% | 55% | - | 65% | - | - | 52% | 2467 | 
| Month: | Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 83% | 83% | - | - | - | - | 49% | 2763 | 
| Month: | Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 57% | 57% | 53% | 46% | - | - | 44% | 3499 | 
| Month: | Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 83% | 75% | - | - | - | - | 49% | 2891 | 
| Month: | Not yet rated by the users | 
| Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 91% | 83% | - | 83% | - | - | 62% | 943 | 
| Month: | Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 94% | 86% | 82% | 84% | - | - | 72% | 167 | 
| Month: | Not yet rated by the users | 
| Ratings | Utility | Consistency | Documentation | Examples | Tests | Videos | Overall | Rank | 
| All time: | 83% | 75% | - | - | - | - | 49% | 2874 | 
| Month: | Not yet rated by the users | 
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