实例
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<html lang="zh-cn">
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<meta charset="UTF-8">
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<title>PHP 中数组的遍历</title>
<link rel="stylesheet" href="http://1.meleezhao.applinzi.com/storm/ross.css">
</head>
<body>
<header>PHP 中数组的遍历</header>
<div class="wrap">
<?
$indexArray= [false,1,2,'3','4','five',['one','two'],8.8];
$relevancyArray = ['id'=>5,'name'=>'ross','sex'=>'保密'];
echo '<div class="one"><p>索引数组</p>';
echo '<pre>';
print_r($indexArray);
echo '</pre>';
echo '</div>';
echo '<div class="one"><p>关联数组';
echo '<pre>';
print_r($relevancyArray);
echo '</pre></p></div>';
echo '<div class="one"><p>for 循环输出</p><pre>';
for($i=0;$i<count($indexArray);$i++){
echo $i." : ".$indexArray[$i]."\n";
}
for($i = 0;$i<count($relevancyArray);$i++){
echo $i." : ".$relevancyArray[$i]."\n";
}
echo '</pre></p></div>';
//while() 输出
echo '<div class="one"><p> while() 输出索引<pre>';
$num= 0;
while($num<count($indexArray)){
echo $num."=>".$indexArray[$num]."\n";
$num++;
}
echo '</pre></p></div>';
echo '<div class="one"><p> while() 输出关联数组<pre>';
$num= 0;
while($num<count($relevancyArray)){
echo $num."=>".$relevancyArray[$num]."\n";
$num++;
}
echo '</pre></p></div>';
//foreach 输出
echo '<div class="one"><p> foreach 输出索引<pre>';
foreach($indexArray as $k => $v){
echo $k.'===>'.$v."\n";
}
echo '</pre></p></div>';
echo '<div class="one"><p> <pre>';
foreach($relevancyArray as $k => $v){
echo $k.'===>'.$v."\n";
}
echo '</pre></p></div>';
echo '<h3>array_splice() 删除 、替换、添加元素</h3>';
$deleteValue = array_splice($relevancyArray,2);
echo '<p>删除后数组的值是：<pre>';
print_r($relevancyArray);
echo '</pre></p>';
echo '<p>删除的值为： <pre>';
print_r($deleteValue);
echo '</pre></p>';
echo '<p>添加元素: <pre>';
array_splice($relevancyArray,0,0,["one","two"]);
print_r($relevancyArray);
echo '</pre></p>';
echo '<p>替换元素：<pre>';
$t=time();
$s = array_splice($relevancyArray,0,2,["city"=>"重庆","date"=>$t]);
print_r($relevancyArray);
echo '<p>删除的值是：</p>';
print_r($s);
echo '</pre></p>';
?>
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