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<?php $interesting_words = [ 'test' => [ 'number_of_occurances' => 0, 'connected_words' => [ 'TEST', 'TESTER', 'TESTING' ] ], 'foobar' => [ 'number_of_occurances' => 0, 'connected_words' => [ 'FOO', 'FOOBAR', 'BAR' ] ] ]; $str = 'Lorem ipsum TEST sit amet, consectetur TESTER elit. Sed in turpis dui. Maecenas venenatis FOOBAR facilisis. Quisque dictum, diam consequat mollis TESTING, orci tellus aliquet nisl, BAR molestie FOO augue at est. In TESTING vehicula lectus. Curabitur ac varius ligula. Pellentesque orci urdna.'; $str = preg_replace('/[\.\,]/i','',$str); $str = strtolower($str); $str_arr = explode(" ",$str); $str_occurance_counts = array_count_values($str_arr); foreach($interesting_words as $k=>&$v){ foreach($v['connected_words'] as $c=>$cVal){ $v['number_of_occurances'] += $str_occurance_counts[strtolower($cVal)]; } echo "Number of occurances for '$k': ".$v['number_of_occurances']."\n"; } print_r($interesting_words ); ?>
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Number of occurances for 'test': 4 Number of occurances for 'foobar': 3 Array ( [test] => Array ( [number_of_occurances] => 4 [connected_words] => Array ( [0] => TEST [1] => TESTER [2] => TESTING ) ) [foobar] => Array ( [number_of_occurances] => 3 [connected_words] => Array ( [0] => FOO [1] => FOOBAR [2] => BAR ) ) )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Number of occurances for 'test': 4 Number of occurances for 'foobar': 3 Array ( [test] => Array ( [number_of_occurances] => 4 [connected_words] => Array ( [0] => TEST [1] => TESTER [2] => TESTING ) ) [foobar] => Array ( [number_of_occurances] => 3 [connected_words] => Array ( [0] => FOO [1] => FOOBAR [2] => BAR ) ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/l4kIq on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/l4kIq on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/l4kIq on line 2
Process exited with code 255.
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