下面介绍PHP中遍历关联数组的三种方法：
方法1：foreach
view source print?
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4
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'swimming' => 'very well',
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5
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'running' => 'not good');
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6
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foreach ($sports as $key => $value) {
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7
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echo $key.": ".$value."<br />";
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输出结果：
football: goodswimming: very wellrunning: not good
方法2：each
view source print?
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4
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'swimming' => 'very well',
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5
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'running' => 'not good');
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6
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while ($elem = each($sports)) {
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7
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echo $elem['key'].": ".$elem['value']."<br />";
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方法3：list & each
view source print?
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4
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'swimming' => 'very well',
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5
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'running' => 'not good');
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6
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while (list($key, $value) = each($sports)) {
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7
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echo $key.": ".$value."<br />";
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