ebook.com/digimantra $data = json_decode(file_get_contents("https://graph.facebook.com/".$facebook_name)); echo $data->likes; } 6. 检测图片的主要颜色$i = imagecreatefromjpeg("image.jpg"); for ($x=0;$x<imagesx($i);$x++) { for ($y=0;$y<imagesy($i);$y++) { $rgb = imagecolorat($i,$x,$y); $r = ($rgb >> 16) & 0xFF; $g = ($rgb >> & 0xFF; $b = $rgb & 0xFF; $rTotal += $r; $gTotal += $g; $bTotal += $b; $total++; } } $rAverage = round($rTotal/$total); $gAverage = round($gTotal/$total); $bAverage = round($bTotal/$total); 7. 获取内存使用信息echo "Initial: ".memory_get_usage()." bytes \n"; /* prints Initial: 361400 bytes */ // let''s use up some memory for ($i = 0; $i < 100000; $i++) { $array []= md5($i); } // let''s remove half of the array for ($i = 0; $i < 100000; $i++) { unset($array[$i]); } echo "Final: ".memory_get_usage()." bytes \n"; /* prints Final: 885912 bytes */ echo "Peak: ".memory_get_peak_usage()." bytes \n"; /* prints Peak: 13687072 bytes */ 8. 使用 gzcompress() 压缩数据$string = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc ut elit id mi ultricies adipiscing. Nulla facilisi. Praesent pulvinar, sapien vel feugiat vestibulum, nulla dui pretium orci, non ultricies elit lacus quis ante. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aliquam pretium ullamcorper urna quis iaculis. Etiam