PHP Array 学习记要(1)

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Release: 2016-06-13 13:04:23
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PHP Array 学习记录(1)
关于数组的一些方法

$test_arr = array(
			'name' => 'test',
			2 => 2,
			'color' => "red"
		);
		echo '使用var_dump方法输出数组:';
			var_dump($test_arr);
		echo '<br><br>使用print_r方法输出数组:';
			print_r($test_arr);
		if(is_array($test_arr)){
			echo "<br><br>$ test_arr是一个数组";
		}

		echo "<br><br> array_push在数组添加项目";
		array_push($test_arr,array('good','nice'),'three','four');
		var_dump($test_arr);

		echo "<br><br> array_pop用法";
		array_pop($test_arr);
		print_r($test_arr);

		echo "<br><br> array_shift返回数组中的第一个元素";
		$b = array_shift($test_arr);
		print_r($b);

		echo "<br><br> array_unshift:";
		array_unshift($test_arr, 'unshift');
		print_r($test_arr);
		
		echo "<br><br> array_pad:";
		$c = array_pad($test_arr, -7 , 'xiang');
		print_r($c);
		
		echo "<br><br> in_array:";
		if(in_array(2, $test_arr)){
			echo 'in_array through validate';
		}else{
			echo 'validate die.';	
		}

		echo "<br><br> array_keys:返回数组键名组合成一个集合:";
		$allmarke = array_keys($test_arr);
		var_dump($allmarke);
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