PHP Optimization Tips | ProgTuts This tutorial will explain many small techniques which will, hopefully, help optimize your php scripts. PHPコード最適化テクニック集。 (1) echo 'a string ' . $name; // は以下より速い echo "a string $name"; (2) echo 'this', 'is', 'a', $variable, 'string'; // は以下より速い echo 'this' . 'is' . 'a' . $variable . 'string'; (3) if (!isset($foo{5})) { echo "Foo is too short"; } // は以下より速い if (strl