PHP Exec vs Passthru A Comprehensive Guide to Shell Execution with PHP

The passthru() function runs an external program, specified in the first parameter. It prints everything output by that program to the screen, unlike the exec ... The exec(), system(), and passthru() functions are all used to execute external programs in PHP. php command exec. They differ in how they handle the output of the program: exec() executes the command and returns the last line of output as a string, or FALSE on error. If you need to execute a command and have all the data from the command passed directly back without any interference, use the passthru() function. Returns ... PHP exec. PHP shell_exec. PHP system. PHP passthru. PHP ` PHP popen. PHP proc_open. Windows ConPty PowerShell #1 PowerShell #2 PowerShell #3 PowerShell #4 (TLS) They have slightly different purposes. exec() is for calling a system command, and perhaps dealing with the output yourself. system() is for ... Calling exec() is usually preferred when the output of your program is irrelevant, whereas passthru() automatically prints your output. Here is both in action: Top 82 PHP Interview Questions. exec. Execute an external program · passthru. Execute an external program and display raw output · shell_exec. Execute command via shell and ... php shell_exec() vs exec() With exec(), you can pass an optional param variable which will receive an array of output lines.