1
I keep getting these errors at the bottom of my website.
Notice [PHP]: Only variables should be assigned by reference in file kernel/profile.php line 94
Notice [PHP]: Only variables should be assigned by reference in file include/common.php line 215
Notice [PHP]: Only variables should be assigned by reference in file kernel/config.php line 239
Notice [PHP]: Only variables should be assigned by reference in file kernel/config.php line 239
Notice [PHP]: Only variables should be assigned by reference in file modules/system/admin/preferences/main.php line 97
Notice [PHP]: Only variables should be assigned by reference in file kernel/module.php line 1449
Notice [PHP]: Only variables should be assigned by reference in file kernel/module.php line 1449
Notice [PHP]: Only variables should be assigned by reference in file modules/system/admin/preferences/main.php line 240
Notice [PHP]: Only variables should be assigned by reference in file kernel/tplset.php line 191
Notice [PHP]: Only variables should be assigned by reference in file modules/system/admin/preferences/main.php line 223
Notice [PHP]: Only variables should be assigned by reference in file modules/system/admin/preferences/main.php line 144
Notice [PHP]: Only variables should be assigned by reference in file modules/system/admin/preferences/main.php line 134
Notice [PHP]: Only variables should be assigned by reference in file modules/system/admin/preferences/main.php line 134
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 310
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 312
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 313
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 316
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 322
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 329
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 331
Notice [PHP]: Only variables should be assigned by reference in file modules/system/admin/preferences/main.php line 250
Notice [PHP]: Only variables should be assigned by reference in file kernel/groupperm.php line 229
Notice [PHP]: Only variables should be assigned by reference in file include/cp_functions.php line 41
Notice [PHP]: Only variables should be assigned by reference in file include/cp_functions.php line 50
Notice [PHP]: Only variables should be assigned by reference in file kernel/groupperm.php line 229
Notice [PHP]: Only variables should be assigned by reference in file include/cp_functions.php line 58
Notice [PHP]: Only variables should be assigned by reference in file include/cp_functions.php line 90
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 310
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 312
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 313
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 316
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 322
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 329
Notice [PHP]: Only variables should be assigned by reference in file class/module.textsanitizer.php line 331
What do these mean and how do i fix it?