Fill 0 on the left of the PHP string, 0 on the right of the string, and a php string

Fill 0 on the left of the PHP string, 0 on the right of the string, and a php string

Overview: A project usually uses automatic filling on the left, right, or even middle of a string of encoding to specify the length of the filled string, for example, "0.

Str_pad: This function returnsInputResult of being filled to the specified length from the left, right, or simultaneously.

 

This may not be clear. Let's look at a case:

Str_pda ('supplemented string', 'length of supplemented string', 'character supplemented ', 'str _ PAD ...');

STR_PAD_LEFT: Fill in on the left

STR_PAD_RIGHT: Fill in on the right

STR_PAD_BOTH: complement on both sides

 

<? Php $ code = str_pad ('pq ', 11,0, STR_PAD_LEFT); echo $ code;

Output result:

'000000000pq'(Length = 11)

 

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