{"id":3179,"date":"2019-07-16T15:10:35","date_gmt":"2019-07-16T06:10:35","guid":{"rendered":"https:\/\/column.prime-strategy.co.jp\/?p=3179"},"modified":"2022-12-15T06:08:34","modified_gmt":"2022-12-14T21:08:34","slug":"php%e3%81%ae%e6%9c%80%e6%96%b0%e7%8a%b6%e6%b3%81%ef%bc%9aphp-7-4%e3%81%ae%e9%96%8b%e7%99%ba%e7%8a%b6%e6%b3%81%ef%bc%88%e7%ac%ac%e4%b8%83%e5%9b%9e%ef%bc%89%ef%bc%88%e5%bb%a3%e5%b7%9d%e9%a1%9e%e6%b0%8f","status":"publish","type":"post","link":"https:\/\/kusanagi.tokyo\/column\/archives\/column_3179","title":{"rendered":"PHP\u306e\u6700\u65b0\u72b6\u6cc1\uff1aPHP 7.4\u306e\u958b\u767a\u72b6\u6cc1\uff08\u7b2c\u4e03\u56de\uff09\uff08\u5ee3\u5ddd\u985e\u6c0f\uff09"},"content":{"rendered":"\n

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PHP 8\u3078\u306eJIT\u63a1\u7528\u304c\u6c7a\u5b9a<\/h1>\n\n\n\n

PHP7\u306e\u6b21\u306e\u30e1\u30b8\u30e3\u30fc\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3068\u3057\u3066PHP 8\u306e\u958b\u767a\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u30ea\u30ea\u30fc\u30b9\u81ea\u4f53\u306f\u307e\u3060\u5148\u306b\u306a\u308a\u305d\u3046\u3067\u3059\u304c\u3001\u91cd\u8981\u306a\u6a5f\u80fd\u3068\u3057\u3066\u4ee5\u524d\u304b\u3089\u63d0\u6848\u3055\u308c\u3066\u3044\u305fJIT (Just-In-Time)\u6a5f\u80fd\u306e\u63a1\u7528\u304c3\u6708\u306b\u884c\u308f\u308c\u305f\u6295\u7968\u306b\u3088\u308a\u6c7a\u5b9a\u3057\u307e\u3057\u305f\u3002\u306a\u304a\u3001\u540c\u6642\u306b\u63d0\u6848\u3055\u308c\u3066\u3044\u305fPHP 7.4\u3078\u306eJIT\u306e\u5b9f\u9a13\u7684\u63a1\u7528\u306f\u5426\u6c7a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u8a73\u7d30\u306f\u3001JIT\u306b\u95a2\u3059\u308b\u63d0\u6848(https:\/\/wiki.php.net\/rfc\/jit<\/a>)\u3092\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n

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\"\"

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PHP 7.4\u306e\u958b\u767a\u72b6\u6cc1<\/h1>\n\n\n\n

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  1. OpCache\u306e\u30d7\u30ea\u30ed\u30fc\u30c9\u6a5f\u80fd<\/li>
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  3. FFI (Foreign\nFunction Interface)\u6a5f\u80fd<\/li>
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  6. ??= \u69cb\u6587<\/li><\/ol>\n\n\n\n

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    FFI(Foreign Function Interface)\u6a5f\u80fd <\/h1>\n\n\n\n

    FFI(Foreign Function Interface)\u3068\u306f\u3001\u3042\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u304b\u3089\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u5b9a\u7fa9\u30fb\u5b9f\u88c5\u3055\u308c\u305f\u95a2\u6570\u30fb\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u30fb\u5909\u6570\u7b49\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306e\u6a5f\u80fd\u3067\u3042\u308a\u3001Lua\u3084Python\u306a\u3069\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u8a00\u8a9e\u306b\u3059\u3067\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5f93\u6765\u3001PHP\u306e\u6a19\u6e96\u30a8\u30af\u30b9\u30c6\u30f3\u30b7\u30e7\u30f3\u3067\u3042\u308bPECL\u3067FFI\u30a8\u30af\u30b9\u30c6\u30f3\u30b7\u30e7\u30f3\u304c\u914d\u5e03\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u9577\u3089\u304f\u66f4\u65b0\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u4eca\u56de\u306e\u5b9f\u88c5\u306f\u3001Zend\u793e\u306eDmitry Stogov\u6c0f\u306b\u3088\u308a\u65b0\u305f\u306b\u958b\u767a\u3055\u308c\u305f\u3082\u306e\u3067\u3042\u308a\u3001libffi\u306e\u6a5f\u80fd\u3092\u4f7f\u3063\u3066\u30b3\u30f3\u30d1\u30af\u30c8\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

    \u5f93\u6765\u3001PHP\u306b\u542b\u307e\u308c\u306a\u3044\u5916\u90e8\u306e\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u306b\u306f\u3001PHP\u30a8\u30af\u30b9\u30c6\u30f3\u30b7\u30e7\u30f3\u3092\u8a18\u8ff0\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u306e\u3067\u3059\u304c\u3001\u3053\u306eFFI\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u307f\u8a18\u8ff0\u3059\u308b\u3060\u3051\u3067\u3001\u6bd4\u8f03\u7684\u5bb9\u6613\u306b\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

     \u4f59\u8ac7\u3067\u3059\u304c\u3001\u3053\u306eFFI\u3092PHP\u672c\u4f53\u306b\u542b\u3081\u308b\u3053\u3068\u306b\u306f\u53cd\u5bfe\u610f\u898b\u304c\u3042\u308a\u3001\u6295\u7968\u306e\u7d50\u679c\u30012019\u5e741\u6708\u306b\u8cdb\u621024\u3001\u53cd\u5bfe15\u3068\u3044\u3046\u6bd4\u8f03\u7684\u50c5\u5dee\u3067PHP 7.4\u3078\u306e\u63a1\u7528\u304c\u6c7a\u307e\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u8a00\u8a9e\u4ed5\u69d8\u306b\u3064\u3044\u3066\u306f2\/3\u3001\u305d\u308c\u4ee5\u5916\u306e\u5909\u66f4\u306b\u3064\u3044\u3066\u306f50%\u3088\u308a\u8cdb\u6210\u304c\u591a\u3051\u308c\u3070\u63a1\u7528\u3059\u308b\u3068\u3044\u3046\u898f\u5247\u306b\u57fa\u3065\u304f\u7d50\u679c\u3067\u3059\u304c\u3001\u3053\u306e\u5f8c\u3001\u201dAbolish narrow magins\u201d\u3068\u3044\u3046RFP\u304c\u63d0\u51fa\u30fb\u63a1\u7528\u3055\u308c\u3001\u5168\u3066\u306e\u5909\u66f4\u306b\u3064\u3044\u30662\/3\u306e\u8cdb\u6210\u3092\u8981\u3059\u308b\u3068\u3044\u3046\u3088\u3046\u306b\u898f\u5247\u304c\u5909\u66f4\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

     FFI\u3092\u5229\u7528\u3059\u308b\u306b\u306f\u3001configure\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u2014with-ffi\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u3064\u3051\u3066PHP\u3092\u69cb\u7bc9\u3057\u307e\u3059\u3002\u30ea\u30b9\u30c81\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

    \u30ea\u30b9\u30c81 PHP FFI\u3067\u5916\u90e8\u95a2\u6570\u3092\u5229\u7528\u3059\u308b\u4f8b<\/p>\n\n\n\n

    --------------------------------------------------------------------------------------<\/p>\n\n\n\n

    \u3000<?php<\/p>\n\n\n\n

    $ffi = FFI::cdef(\"double atan2(const double,\nconst double);\",\"libm.so.6\");<\/p>\n\n\n\n

    var_dump($ffi->atan2(0.1,0.0)); \/\/\nfloat(1.5707963267949)<\/p>\n\n\n\n

    --------------------------------------------------------------------------------------<\/p>\n\n\n\n

    \u307e\u305a\u3001\u30e1\u30bd\u30c3\u30c9cdef\u306e\u9759\u7684\u30b3\u30fc\u30eb\u306b\u3088\u308aFFI\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u969b\u3001\u7b2c\u4e00\u5f15\u6570\u306b\u306f\u901a\u5e38\u306eC\u8a00\u8a9e\u306e\u5ba3\u8a00\uff08\u95a2\u6570\u3001\u5909\u6570\u3001\u69cb\u9020\u4f53\u7b49\uff09\u3001\u7b2c\u4e8c\u5f15\u6570\u306b\u306f\u547c\u3073\u51fa\u3059\u6a5f\u80fd\u304c\u5b9f\u88c5\u3055\u308c\u305f\u5171\u6709\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u540d\u524d\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u4f8b\u3067\u306f\u3001\u30a2\u30fc\u30af\u30bf\u30f3\u30b8\u30a7\u30f3\u30c8\u3092\u8a08\u7b97\u3059\u308b\u6570\u5b66\u95a2\u6570atan2\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u7b2c\u4e00\u5f15\u6570\u306e\u5ba3\u8a00\u306f\u901a\u5e38C\u8a00\u8a9e\u306e\u30d8\u30c3\u30c0\u30d5\u30a1\u30a4\u30eb\u306b\u5ba3\u8a00\u3055\u308c\u308b\u3082\u306e\u3068\u540c\u7b49\u3068\u8003\u3048\u3066\u826f\u3044\u3067\u3057\u3087\u3046\u3002\u307e\u305f\u3001\u30c6\u30b9\u30c8\u74b0\u5883\u306eUbuntu Linux 18.04\u4e0a\u3067\u306f\u5171\u6709\u30e9\u30a4\u30d6\u30e9\u30ealibm.so.6\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u7b2c\u4e8c\u5f15\u6570\u306b\u6307\u5b9a\u3057\u307e\u3059\u30023\u884c\u76ee\u306b\u5b9f\u969b\u306batan2\u95a2\u6570\u3092FFI\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u30b3\u30fc\u30eb\u3057\u3066\u3044\u307e\u3059\u3002atan2(0.1,0.0)\u306e\u7d50\u679c\u306f\u6b63\u3057\u304f 1.57\u2026 \u3068\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

    C\u8a00\u8a9e\u306e\u5f15\u6570\u3068PHP\u306e\u5909\u6570\u306e\u9593\u306e\u5909\u63db\u306fcdef\u30e1\u30bd\u30c3\u30c9\u306e\u7b2c\u4e00\u5f15\u6570\u306b\u6307\u5b9a\u3057\u305f\u5ba3\u8a00\u306b\u57fa\u3065\u304d\u81ea\u52d5\u7684\u306b\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

     C\u8a00\u8a9e\u3067\u8a18\u8ff0\u3055\u308c\u305f\u69cb\u9020\u4f53\u3084\u5909\u6570\u306a\u3069\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u30ea\u30b9\u30c82\u306bC\u8a00\u8a9e\u306e\u914d\u5217\u3092\u5b9a\u7fa9\u3057\u3066\u5229\u7528\u3059\u308b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

    \u30ea\u30b9\u30c82 PHP FFI\u3067\u5916\u90e8\u5909\u6570\u3092\u5229\u7528\u3059\u308b\u4f8b<\/p>\n\n\n\n

    --------------------------------------------------------------------------------------<\/p>\n\n\n\n

    \u3000<?php<\/p>\n\n\n\n

    $a = FFI::new(\"unsigned char[1024*1024]\");<\/p>\n\n\n\n

    for ($i = 0; $i < count($a); $i++) {<\/p>\n\n\n\n

      $a[$i] = $i;<\/p>\n\n\n\n

    }<\/p>\n\n\n\n

    var_dump($a[25]); \/\/ \u51fa\u529b: int(25)<\/p>\n\n\n\n

    var_dump(FFI::sizeof($a)); \/\/ \u51fa\u529b:\nint(1048576)<\/p>\n\n\n\n

    --------------------------------------------------------------------------------------<\/p>\n\n\n\n

     \u3053\u306e\u4f8b\u3067\u306f\u30011024x1024\u306e\u5927\u304d\u306a8bit\u7b26\u53f7\u306a\u3057\u914d\u5217\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u969b\u3001new\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u53d6\u5f97\u3055\u308c\u305fFFI\\CData\u30aa\u30d6\u30b8\u30a7\u30af\u30c8($a)\u306b\u306f\u914d\u5217\u3068\u3057\u3066\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u30028\u884c\u76ee\u3067FFI::sizeof\u3067\u5927\u304d\u3055\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u7d50\u679c\u306f\u30011048576(=1024x1024)\u30688bit\u7b26\u53f7\u306a\u3057\u914d\u5217\u3068\u3057\u3066\u6b63\u3057\u304f\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

    \u3000FFI\u95a2\u6570\u306f\u3001OPCache\u306b\u5b9f\u88c5\u3055\u308c\u305f\u30d7\u30ea\u30ed\u30fc\u30c9\u6a5f\u80fd\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3088\u3046\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5ea6\u306bC\u8a00\u8a9e\u30d8\u30c3\u30c0\u306e\u30d1\u30fc\u30b9\u3092\u884c\u3046\u3053\u3068\u306b\u3088\u308b\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u907f\u3051\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u306e\u52d5\u4f5c\u306f\u3001\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30ebphp.ini\u306b\u304a\u3044\u3066ffi.enable\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u3088\u308a\u8a2d\u5b9a\u53ef\u80fd\u3067\u3059\u3002\u6a19\u6e96\u3067\u306f\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u30d7\u30ea\u30ed\u30fc\u30c9\u3092\u884c\u3063\u305f\u95a2\u6570\u307e\u305f\u306fCLI\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3067\u306e\u307fFFI\u6a5f\u80fd\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

    ffi.enable=preload<\/p>\n\n\n\n

    \u306a\u304a\u3001ffi.enable\u306btrue\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u30d7\u30ea\u30ed\u30fc\u30c9\u3055\u308c\u3066\u3044\u306a\u3044\u95a2\u6570\u3092\u542b\u3081\u3066\u5e38\u306bFFI\u6a5f\u80fd\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

     FFI\u30a8\u30af\u30b9\u30c6\u30f3\u30b7\u30e7\u30f3\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3082\u3084\u3084\u7279\u6b8a\u3067\u4f7f\u3044\u3053\u306a\u3059\u306b\u306f\u6163\u308c\u304c\u5fc5\u8981\u3067\u3059\u304c\u3001\u5f93\u6765PHP\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u306f\u5b9f\u88c5\u304c\u96e3\u3057\u304b\u3063\u305f\u6a5f\u80fd\u3092\u5bb9\u6613\u306b\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u308c\u308b\u3068\u3044\u3046\u610f\u5473\u3067\u6709\u7528\u306a\u6a5f\u80fd\u3068\u8a00\u3048\u307e\u3059\u3002\u4e00\u4f8b\u3068\u3057\u3066\u3001\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u306e\u6a5f\u68b0\u5b66\u7fd2\u7528\u30e9\u30a4\u30d6\u30e9\u30eaTensorFlow\u3092PHP\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089\u5229\u7528\u3059\u308b\u4f8b\u304cgithub\u3067\u516c\u958b\u3055\u308c\u3066\u3044\u307e\u3059\u306e\u3067\u3001URL\u3092\u7d39\u4ecb\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

    https:\/\/github.com\/dstogov\/php-tensorflow<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    \u3053\u3093\u306b\u3061\u306f\u30012019\u5e74\u306f\u65e9\u304f\u3082\u534a\u5206\u304c\u904e\u304e\u3001\u5f8c\u534a\u3068\u306a\u308a\u307e\u3057\u305f\u3002PHP\u306e\u958b\u767a\u306f\u30012019\u5e74\u672b\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u3068\u3059\u308bPHP 7.4\u306e\u958b\u767a\u304c\u3044\u3088\u3044\u3088\u4f73\u5883 ... Read more<\/a><\/p>\n","protected":false},"author":14,"featured_media":1280,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[15],"tags":[],"series":[50],"journey":[],"product":[],"class_list":["post-3179","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php","series-php-column-hiirokawa","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33","no-featured-image-padding"],"yoast_head":"\nPHP\u306e\u6700\u65b0\u72b6\u6cc1\uff1aPHP 7.4\u306e\u958b\u767a\u72b6\u6cc1\uff08\u7b2c\u4e03\u56de\uff09\uff08\u5ee3\u5ddd\u985e\u6c0f\uff09 - KUSANAGI Tech Column<\/title>\n<meta name=\"description\" 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