php - Write to TXT file with length delimited data -

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i'm trying write text file on php, fields need length each one. order number 10 characters long, order name 5 characters, telephone 12 characters long.

ex:

12345    1234 123456789123

if try:

fwrite('text.txt', '12345', 10); fwrite('text.txt', '1234', 5); fwrite('text.txt', '12346789123', 12);

i get: 123451234123456789123

how can tell add spaces specific size need in each field.

you use

fwrite('text.txt', str_pad('12345', 10, " ")); fwrite('text.txt', str_pad('1234', 5, " ")); fwrite('text.txt', str_pad('12346789123', 12, " "));

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