PHP LTrim () RTrim () trim () Delete word spaces _php Tutorial

The trim function in PHP cannot be automatically removed from all spaces, as in ASP, and it specializes in providing the RTrim () trim () function, which you can refer to.

<?php$str= "Remove the space before and after"; Echo "is the original string in square brackets: [". $str. "]"; echo "Original string length:". strlen ($STR). ""; $str 1=ltrim ($STR); echo "The length after LTrim () is executed:". strlen ($str 1). "; $str 2=rtrim ($STR); echo "The length after RTrim () is executed:". strlen ($str 2). "; $str 3=trim ($STR); echo "The length after trim ():". strlen ($str 3). "; echo "Remove the string after the trailing space: [". $str 3. "]";? >

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