自定义函数 实现字符串转数组
<?php
$str = 'I want to go home ';
strToArr( $str );
function strToArr( $str )
{
$arr = [];
$s = '';
for ( $i=0; $i < strlen( $str ); $i++) {
if( $str[$i] == ' ' )
{
$arr[] = $s;
$s = '';
}
else
{
$s.= $str[$i];
}
}
if( $s != '' && $s != ' ' )
{
$arr[] = $s;
}
return $arr;
}
?>
自定义函数 实现数组转字符串
<?php
$arr = ['I', 'want', 'to', 'go','home'];
echo arrToStr( $arr );
function arrToStr( $arr )
{
$str = '';
foreach ($arr as $key => $value) {
if( $key == 0 )
{
$str = $value;
}
else
{
$str .= ' '.$value;
}
}
return $str;
}
?>
转载于:https://www.cnblogs.com/laowenBlog/p/11367928.html
