Lets say you have below php_admin_value directive set in "php.ini Override".
php_admin_value disable_functions vbktueelqgepprtaemhonhpwdpibgcztsntjvthjioymqnhowjosiygapzkvpbbxacvwsncgkkdujbmbmcrynatajdrpotvmfxrgqhxcsafmmtgtyqjvugtpdyujvkcwnlvulwfwwagjughuubhycbpznylytbhxztjzhtdghwfgjncylcoeshfbwhcqcdxlntzafntrxigtnmhxcouhfupwlfosnjmxjdyworcjepvclxvhebnctysudcccicxgwgsttwjomqqujnavppdmogsasbcxcbucrlljhwgpheycdtmbuomfrfpdmomyvdailmlatkcchrnpcljwcfhhozdzmdxmjevxpzeyngrazxyzztqhtpnawcdcoggxiybedmtfxxmgdcndzqtsgonhsfnjvhnufmkjffdhytlhjoflximiqisuuxduqaobctzfsgbgyuxkxwhyrdqenkfmmlfwdnxqjzmcemhdtqrijlbkicasfhqxvmnobqpuewddkgudeisjrzjqskepkzdwpwfkedpiskldmsstneousvgybmrnztiutpiupaonchulvlbdgxxycqezbzvnduyttoixqdlipvjakkvgisqvleqsriqkauipkraezwdzzyhhpgqcnunfpqujdedcynpeuxcngwhqfsizuzzqcpefiqvloqptmzflntlacfdcffpodmohecafmdczajldpwrvjbflefoehjqnpioarlyqqnvldfeimozfhuyoumaihoftruvpbvecsazhfhabhnrivezmceosrepmlnkitvazoljfaofwhlknhgsrunwsepkznhwneuwswtoypgpzrztlpwugerwhcvsvdowoelzazllceslifpjlaujeclkfhmrqektwtjrcvvmraickkhdjmjnosylnwlnhvzzplltimcyiebkqflbjcjgljdepztnfrnkmtqbdyhztxdbqefzbjbzjdbyolahetajahigackroa
Above works fine.
Now add extra character, like 'z', to the end and restart lsws.
Take a look at value of disable_functions using get_ini or phpinfo. It does not return the value you've specified.
Confirmed in lsws ver 1.7.4
php_admin_value disable_functions vbktueelqgepprtaemhonhpwdpibgcztsntjvthjioymqnhowjosiygapzkvpbbxacvwsncgkkdujbmbmcrynatajdrpotvmfxrgqhxcsafmmtgtyqjvugtpdyujvkcwnlvulwfwwagjughuubhycbpznylytbhxztjzhtdghwfgjncylcoeshfbwhcqcdxlntzafntrxigtnmhxcouhfupwlfosnjmxjdyworcjepvclxvhebnctysudcccicxgwgsttwjomqqujnavppdmogsasbcxcbucrlljhwgpheycdtmbuomfrfpdmomyvdailmlatkcchrnpcljwcfhhozdzmdxmjevxpzeyngrazxyzztqhtpnawcdcoggxiybedmtfxxmgdcndzqtsgonhsfnjvhnufmkjffdhytlhjoflximiqisuuxduqaobctzfsgbgyuxkxwhyrdqenkfmmlfwdnxqjzmcemhdtqrijlbkicasfhqxvmnobqpuewddkgudeisjrzjqskepkzdwpwfkedpiskldmsstneousvgybmrnztiutpiupaonchulvlbdgxxycqezbzvnduyttoixqdlipvjakkvgisqvleqsriqkauipkraezwdzzyhhpgqcnunfpqujdedcynpeuxcngwhqfsizuzzqcpefiqvloqptmzflntlacfdcffpodmohecafmdczajldpwrvjbflefoehjqnpioarlyqqnvldfeimozfhuyoumaihoftruvpbvecsazhfhabhnrivezmceosrepmlnkitvazoljfaofwhlknhgsrunwsepkznhwneuwswtoypgpzrztlpwugerwhcvsvdowoelzazllceslifpjlaujeclkfhmrqektwtjrcvvmraickkhdjmjnosylnwlnhvzzplltimcyiebkqflbjcjgljdepztnfrnkmtqbdyhztxdbqefzbjbzjdbyolahetajahigackroa
Above works fine.
Now add extra character, like 'z', to the end and restart lsws.
Take a look at value of disable_functions using get_ini or phpinfo. It does not return the value you've specified.
Confirmed in lsws ver 1.7.4