07-31-2009
The $ in front of the string causes it to try to
execute the string and feed
its output into ed, not feed it into ed directly. Which is a new one on me. Shells are such weird things.
cat <<< "asdf" works fine, as does
cat <<< "$varname".
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LEARN ABOUT PHP
array_shift
ARRAY_SHIFT(3) 1 ARRAY_SHIFT(3)
array_shift - Shift an element off the beginning of array
SYNOPSIS
mixed array_shift (array &$array)
DESCRIPTION
array_shift(3) shifts the first value of the $array off and returns it, shortening the $array by one element and moving everything down.
All numerical array keys will be modified to start counting from zero while literal keys won't be touched.
Note
This function will reset(3) the array pointer of the input array after use.
PARAMETERS
o $array
- The input array.
RETURN VALUES
Returns the shifted value, or NULL if $array is empty or is not an array.
EXAMPLES
Example #1
array_shift(3) example
<?php
$stack = array("orange", "banana", "apple", "raspberry");
$fruit = array_shift($stack);
print_r($stack);
?>
The above example will output:
Array
(
[0] => banana
[1] => apple
[2] => raspberry
)
and orange will be assigned to $fruit.
SEE ALSO
array_unshift(3), array_push(3), array_pop(3).
PHP Documentation Group ARRAY_SHIFT(3)