Backticks is probably going to be deprecated. It's safer to not use it.
See details why:
https://wiki.php.net/rfc/deprecate-backtick-operator-v2
System program execution
- Introducere
- Instalarea / configurarea
- Constante predefinite
- Program execution Funcții
- escapeshellarg — Escape a string to be used as a shell argument
- escapeshellcmd — Escape shell metacharacters
- exec — Execute an external program
- passthru — Execute an external program and display raw output
- proc_close — Close a process opened by proc_open and return the exit code of that process
- proc_get_status — Get information about a process opened by proc_open
- proc_nice — Change the priority of the current process
- proc_open — Execute a command and open file pointers for input/output
- proc_terminate — Kills a process opened by proc_open
- shell_exec — Execute command via shell and return the complete output as a string
- system — Execute an external program and display the output
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User Contributed Notes 2 notes
Anonymous ¶
5 years ago
bishop at php dot net ¶
5 years ago
Similar to these functions, there is also the backtick ("back-tick") execution operator:
https://www.php.net/manual/en/language.operators.execution.php
<?php
$output = `ls -al`;
echo "<pre>$output</pre>";
?>
This operator runs the command given inside the backticks, and supports string interpolation just like double quotes:
<?php
$dir = addcslashes(sys_get_tmp_dir(), '"');
echo `ls "{$dir}"`;
?>
