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str_pad() pads a string into a string of specified length_PHP tutorial
str_pad() pads a string into a string of specified length_PHP tutorial
/**
* Fill the string into a string of specified length (multi-byte safe)
* @param string $str specifies the filled string
* @param int $len specifies the filled string The length, if the value is negative or less than the length of the string, it will not be filled
* @param string $pad_str The string to be filled
* @param int $pad_type specifies the direction of filling STR_PAD_RIGHT, STR_PAD_LEFT or STR_PAD_BOTH
* @return string
*/
// string str_pad(string $str, int $len, string $pad_str, string $pad_type);
echo str_pad($result2 [0],6,"0",STR_PAD_LEFT);
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