I'm trying to delete specific cron job with my PHP script. First of all I'm trying to get current cron jobs using shell_exec:
shell_exec('crontab -l');
When this script executing from webbrowser shell_exec returns all current cron jobs. But when this script executing from cron job shell_exec returns empty string. Why?
On another webhosting this works fine, but here I have this issue. I tried to find the reason or solution, tried different ways but didn't found any working solution.
我正在尝试使用我的PHP脚本删除特定的cron作业。 首先，我想要获取 使用shell_exec的当前cron作业：
shell_exec（'crontab -l'）;
执行此脚本时 来自webbrowser shell_exec返回所有当前的cron作业。 但是当从cron job shell_exec执行的脚本返回空字符串时。 为什么？
在另一个虚拟主机上，这个工作正常，但我在这里有这个问题。 我试图找到原因或解决方案，尝试了不同的方法，但没有找到任何有效的解决方案。
You must put the entire path of the command, in this case, the path of crontab.
Because when the crontab executes their jobs, there is no environment variable $PATH to look for binaries
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