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php method to remove spaces in strings: first create a PHP sample file; then pass "function trimall($str){$qian=array(" "," ","\t"," \n","\r");}" method can remove spaces in the string.
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php removes all spaces in the string
In fact, it is an extension of the trim function
trim can only delete spaces on both sides of the string
php code
function trimall($str)//删除空格 { $qian=array(" "," ","\t","\n","\r"); $hou=array("","","","",""); return str_replace($qian,$hou,$str); }
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