パラメーター

• $ array1 （配列） - 比較される最初の配列。
• $ array2 （array） - 最初の配列と比較する必要がある配列。
• $ array （配列） - オプション、複数の配列、複数の配列を比較するために渡すことができます。

返品値

最初の配列に存在するが、他の配列には存在しないすべてのキー価値ペアを含む配列を返します。違いがない場合は、空の配列を返します。

例

$ array1 = array（ "a" => "apple"、 "b" => "banana"、 "c" => "cherry"）;
$ array2 = array（ "a" => "apple"、 "b" => "banana"）;
$ array3 = array（ "a" => "apple"、 "c" => "cherry"）;

$ result = array_diff_assoc（$ array1、$ array2、$ array3）;
print_r（$ result）;

<div class="contain-inline-size rounded-2xl border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary"><div class="flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none rounded-t-2xl"> php-template </div><div class="sticky top-9"><div class="absolute end-0 bottom-0 flex h-9 items-center pe-2"><div class="bg-token-sidebar-surface-primary text-token-text-secondary dark:bg-token-main-surface-secondary flex items-center gap-4 rounded-sm px-2 font-sans text-xs"><button class="flex gap-1 items-center select-none py-1" aria-label="复制"><svg width="20" height="20" viewBox="0 0 20 20" fill="currentColor" xmlns="http://www.w3.org/2000/svg" class="icon-xs"><path d="M12.668 10.667C12.668 9.95614 12.668 9.46258 12.6367 9.0791C12.6137 8.79732 12.5758 8.60761 12.5244 8.46387L12.4688 8.33399C12.3148 8.03193 12.0803 7.77885 11.793 7.60254L11.666 7.53125C11.508 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10.667V12.665ZM18.165 9.33301C18.165 10.022 18.1657 10.5791 18.1289 11.0293C18.0961 11.4302 18.0311 11.7914 17.8867 12.1279L17.8203 12.2705C17.5549 12.7914 17.1509 13.2272 16.6553 13.5313L16.4365 13.6533C16.0599 13.8452 15.6541 13.9245 15.1963 13.9619C14.8593 13.9895 14.4624 13.9935 13.9951 13.9951C13.9935 14.4624 13.9895 14.8593 13.9619 15.1963C13.9292 15.597 13.864 15.9576 13.7197 16.2939L13.6533 16.4365C13.3878 16.9576 12.9841 17.3941 12.4883 17.6982L12.2705 17.8203C11.8937 18.0123 11.4873 18.0915 11.0293 18.1289C10.5791 18.1657 10.022 18.165 9.33301 18.165H6.5C5.81091 18.165 5.25395 18.1657 4.80371 18.1289C4.40306 18.0962 4.04235 18.031 3.70606 17.8867L3.56348 17.8203C3.04244 17.5548 2.60585 17.151 2.30176 16.6553L2.17969 16.4365C1.98788 16.0599 1.90851 15.6541 1.87109 15.1963C1.83431 14.746 1.83496 14.1891 1.83496 13.5V10.667C1.83496 9.978 1.83432 9.42091 1.87109 8.9707C1.90851 8.5127 1.98772 8.10625 2.17969 7.72949L2.30176 7.51172C2.60586 7.0159 3.04236 6.6122 3.56348 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<p>この例では、 <span class="fun">$ array1</span>には3つの要素が含まれていますが、 <span class="fun">$ array2</span>と<span class="fun">$ array3は</span>どちらも<span class="fun">$ array1</span>と同じ部分を持っています。 <span class="fun">array_diff_assoc</span>を介して比較した後、 <span class="fun">$ array1</span>に固有のキー価値ペアのみを使用して結果が得られます。</p>
<p>コードを実行した後、出力は次のとおりです。</p>
<pre class="">