PHP-Sortierfunktion

sort(): Sortieren Sie einfach die Elemente eines Arrays von niedrig nach hoch. Diese Funktion kann entweder numerisch oder alphabetisch angeordnet werden.

<code>Listing A

<span><?php</span><span>$data</span> = <span>array</span>(<span>5</span>,<span>8</span>,<span>1</span>,<span>7</span>,<span>2</span>);

  sort(<span>$data</span>);

  print_r(<span>$data</span>);

<span>?></span>输出结果如下所示：

<span>Array</span> ([<span>0</span>] => <span>1</span>[<span>1</span>] => <span>2</span>[<span>2</span>] => <span>5</span>[<span>3</span>] => <span>7</span>[<span>4</span>] => <span>8</span>)</code>

rsort(): Sortiert die Array-Elemente von hoch nach niedrig, entweder numerisch oder alphabetisch.

<code><span><?php</span><span>$data</span> = <span>array</span>(<span>5</span>,<span>8</span>,<span>1</span>,<span>7</span>,<span>2</span>);rsort(<span>$data</span>); print_r(<span>$data</span>);
<span>?></span>它的输出结果如下：

<span>Array</span> ([<span>0</span>] => <span>8</span>[<span>1</span>] => <span>7</span>[<span>2</span>] => <span>5</span>[<span>3</span>] => <span>2</span>[<span>4</span>] => <span>1</span>)</code>

ksort(): Eine Funktion, die nach Schlüsselwörtern sortiert und gleichzeitig die Relevanz von Schlüsselwörtern während des Sortiervorgangs beibehält.

<code><span><?php</span><span>$data</span> = <span>array</span>(<span>"US"</span> => <span>"United States"</span>, <span>"IN"</span> => <span>"India"</span>, <span>"DE"</span> => <span>"Germany"</span>, <span>"ES"</span> => <span>"Spain"</span>);
    ksort(<span>$data</span>);
    print_r(<span>$data</span>);
<span>?></span>它的输出结果如下：

<span>Array</span> ([DE] => Germany

[ES] => Spain

[IN] => India

[US] => United States

)</span></code>

krsort(): Sortiert das Array nach Schlüsselwörtern.

<code><span><?php</span><span>$data</span> = <span>array</span>(<span>"US"</span> => <span>"United States"</span>, <span>"IN"</span> => <span>"India"</span>, <span>"DE"</span> => <span>"Germany"</span>, <span>"ES"</span> => <span>"Spain"</span>);
    krsort(<span>$data</span>);
    print_r(<span>$data</span>);
<span>?></span>它的输出结果如下：

<span>Array</span> ([US] => United States

[IN] => India

[ES] => Spain

[DE] => Germany

)</span></code>

asort(): Wertsortierung statt Schlüsselwortsortierung verwenden. Bitte beachten Sie, dass die Beziehung zwischen Schlüsselwörtern und Werten immer erhalten bleibt.

<code><span><?php</span><span>$data</span> = <span>array</span>(<span>"US"</span> => <span>"United States"</span>, <span>"IN"</span> => <span>"India"</span>, <span>"DE"</span> => <span>"Germany"</span>, <span>"ES"</span> => <span>"Spain"</span>);
    asort(<span>$data</span>);
    print_r(<span>$data</span>);
<span>?></span>它的输出结果如下：

<span>Array</span> ([DE] => Germany

[IN] => India

[ES] => Spain

[US] => United States

)</span></code>

arsort(): Sortiert in alphabetischer Reihenfolge nach Wert.

<code><span><?php</span><span>$data</span> = <span>array</span>(<span>"US"</span> => <span>"United States"</span>, <span>"IN"</span> => <span>"India"</span>, <span>"DE"</span> => <span>"Germany"</span>, <span>"ES"</span> => <span>"Spain"</span>);
    arsort(<span>$data</span>);
    print_r(<span>$data</span>);
<span>?></span><span>Array</span> ([US] => United States

[ES] => Spain

[IN] => India

[DE] => Germany

)</span></code>

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Das Obige stellt die Sortierfunktion von PHP vor, einschließlich Aspekten des Inhalts. Ich hoffe, dass es für Freunde hilfreich ist, die sich für PHP-Tutorials interessieren.