PHP 技巧 （更新中）

获取数组键值

<?php
$arr=[
	'name'=>'tom',
	'age'=>'12',
	'school'=>''
];

print_r(array_keys($arr));  //获取键
print_r(array_values($arr));<?php
$arr=[
	'name'=>'tom',
	'age'=>'12',
	'school'=>''
];

print_r(array_keys($arr));  //获取键
print_r(array_values($arr));//获取值

数组拼合字符串

public function to_line($arrs){
	$line = "";
	foreach($arrs as $keys=>$vals){
		$line .= $vals.'\t';
	}
	$line = rtrim($line, '\t');
	echo $line.public function to_line($arrs){
	$line = "";
	foreach($arrs as $keys=>$vals){
		$line .= $vals.'\t';
	}
	$line = rtrim($line, '\t');
	echo $line."\n";
}

字符替换

<?php
// 把字符串 "Name\tAge\n" 中的字符 "\t" 替换为 ","：
echo str_replace("\t",",","Name\tAge\n");
<?php
// 把字符串 "Name\tAge\n" 中的字符 "\t" 替换为 ","：
echo str_replace("\t",",","Name\tAge\n");
?>