How to execute multi line command with shell_exec?

Question

I am trying to run a multi line shell in shell_exec

$cmd = <<<CMD
convert  /home//test.jpg 
-font Nimbus-Sans-L -pointsize 20  \
-draw "gravity south  fill black  text 0,12 'Copyright'  fill white  text 1,11 'Copyright' " \ 
test2.jpg
CMD;

I tried with \ with \\ and even with \\\ and also without any !

What is the correct syntax ?

Answer 1

You're missing a trailing \ backslash on the first line of the command. It should be:

$cmd = <<<CMD
convert  /home//test.jpg \
-font Nimbus-Sans-L -pointsize 20  \
-draw "gravity south  fill black  text 0,12 'Copyright'  fill white  text 1,11 'Copyright' " \ 
test2.jpg
CMD;

---

See that this works as expected:

<?php

$cmd = <<<CMD
echo abc \
def \
ghi
CMD;

print_r(shell_exec($cmd));

$ php test.php
abc def ghi