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  1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  2. <html>
  3. <head>
  4. <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  5. <title>変数の型をセットする</title>
  6. </head>
  7. <body><div class="manualnavbar" style="text-align: center;">
  8. <div class="prev" style="text-align: left; float: left;"><a href="function.serialize.html">serialize</a></div>
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  10. <div class="up"><a href="ref.var.html">変数操作 関数</a></div>
  11. <div class="home"><a href="index.html">PHP Manual</a></div>
  12. </div><hr /><div id="function.settype" class="refentry">
  13. <div class="refnamediv">
  14. <h1 class="refname">settype</h1>
  15. <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">settype</span> &mdash; <span class="dc-title">変数の型をセットする</span></p>
  16. </div>
  17. <div class="refsect1 description" id="refsect1-function.settype-description">
  18. <h3 class="title">説明</h3>
  19. <div class="methodsynopsis dc-description">
  20. <span class="type">bool</span> <span class="methodname"><strong>settype</strong></span>
  21. ( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$var</code></span>
  22. , <span class="methodparam"><span class="type">string</span> <code class="parameter">$type</code></span>
  23. )</div>
  24. <p class="para rdfs-comment">
  25. 変数 <em><code class="parameter">var</code></em> の型を
  26. <em><code class="parameter">type</code></em> にセットします
  27. </p>
  28. </div>
  29. <div class="refsect1 parameters" id="refsect1-function.settype-parameters">
  30. <h3 class="title">パラメータ</h3>
  31. <p class="para">
  32. <dl>
  33. <dt>
  34. <span class="term"><em><code class="parameter">var</code></em></span>
  35. <dd>
  36. <p class="para">
  37. 変換する変数
  38. </p>
  39. </dd>
  40. </dt>
  41. <dt>
  42. <span class="term"><em><code class="parameter">type</code></em></span>
  43. <dd>
  44. <p class="para">
  45. <em><code class="parameter">type</code></em> の値は以下の命令のいずれかです
  46. <ul class="itemizedlist">
  47. <li class="listitem">
  48. <span class="simpara">
  49. &quot;boolean&quot; (またはPHP 4.2.0以降は&quot;bool&quot;)
  50. </span>
  51. </li>
  52. <li class="listitem">
  53. <span class="simpara">
  54. &quot;integer&quot; (またはPHP 4.2.0以降は&quot;int&quot;)
  55. </span>
  56. </li>
  57. <li class="listitem">
  58. <span class="simpara">
  59. &quot;float&quot; (PHP 4.2.0以降でのみ可能古いバージョンでは&quot;double&quot;
  60. を使用します)
  61. </span>
  62. </li>
  63. <li class="listitem">
  64. <span class="simpara">
  65. &quot;string&quot;
  66. </span>
  67. </li>
  68. <li class="listitem">
  69. <span class="simpara">
  70. &quot;array&quot;
  71. </span>
  72. </li>
  73. <li class="listitem">
  74. <span class="simpara">
  75. &quot;object&quot;
  76. </span>
  77. </li>
  78. <li class="listitem">
  79. <span class="simpara">
  80. &quot;null&quot; (PHP 4.2.0以降)
  81. </span>
  82. </li>
  83. </ul>
  84. </p>
  85. </dd>
  86. </dt>
  87. </dl>
  88. </p>
  89. </div>
  90. <div class="refsect1 returnvalues" id="refsect1-function.settype-returnvalues">
  91. <h3 class="title">返り値</h3>
  92. <p class="para">
  93. 成功した場合に <strong><code>TRUE</code></strong> 失敗した場合に <strong><code>FALSE</code></strong> を返します
  94. </p>
  95. </div>
  96. <div class="refsect1 examples" id="refsect1-function.settype-examples">
  97. <h3 class="title"></h3>
  98. <p class="para">
  99. <div class="example" id="example-4962">
  100. <p><strong>例1 <span class="function"><strong>settype()</strong></span> の例</strong></p>
  101. <div class="example-contents">
  102. <div class="phpcode"><code><span style="color: #000000">
  103. <span style="color: #0000BB">&lt;?php<br />$foo&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"5bar"</span><span style="color: #007700">;&nbsp;</span><span style="color: #FF8000">//&nbsp;string<br /></span><span style="color: #0000BB">$bar&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;boolean<br /><br /></span><span style="color: #0000BB">settype</span><span style="color: #007700">(</span><span style="color: #0000BB">$foo</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"integer"</span><span style="color: #007700">);&nbsp;</span><span style="color: #FF8000">//&nbsp;ここでは、$foo&nbsp;は&nbsp;5です&nbsp;(整数)<br /></span><span style="color: #0000BB">settype</span><span style="color: #007700">(</span><span style="color: #0000BB">$bar</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"string"</span><span style="color: #007700">);&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;ここでは、$bar&nbsp;は&nbsp;"1"&nbsp;です&nbsp;(文字列)<br /></span><span style="color: #0000BB">?&gt;</span>
  104. </span>
  105. </code></div>
  106. </div>
  107. </div>
  108. </p>
  109. </div>
  110. <div class="refsect1 notes" id="refsect1-function.settype-notes">
  111. <h3 class="title">注意</h3>
  112. <blockquote class="note"><p><strong class="note">注意</strong>:
  113. <p class="para">
  114. &quot;int&quot; の最大値は <strong><code>PHP_INT_MAX</code></strong> です
  115. </p>
  116. </p></blockquote>
  117. </div>
  118. <div class="refsect1 seealso" id="refsect1-function.settype-seealso">
  119. <h3 class="title">参考</h3>
  120. <p class="para">
  121. <ul class="simplelist">
  122. <li class="member"> <span class="function"><a href="function.gettype.html" class="function" rel="rdfs-seeAlso">gettype()</a> - 変数の型を取得する</span></li>
  123. <li class="member"><a href="language.types.type-juggling.html#language.types.typecasting" class="link">型キャスト</a></li>
  124. <li class="member"><a href="language.types.type-juggling.html" class="link">型の相互変換</a></li>
  125. </ul>
  126. </p>
  127. </div>
  128. </div><hr /><div class="manualnavbar" style="text-align: center;">
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  133. </div></body></html>