php 删除所有空格

function

trimall(

$str

)

//删除空格

{

$oldchar

=

array

(

" "

,

"　"

,

"\t"

,

"\n"

,

"\r"

);

$newchar

=

array

(

""

,

""

,

""

,

""

,

""

);

return

str_replace

(

$oldchar

,

$newchar

,

$str

);

}

測試：

$str = " a b c d e f ";

echo trimall($str);

輸出結果：

abcdef