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34 lines
1.5 KiB
PHP
34 lines
1.5 KiB
PHP
--TEST--
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Test preg_replace_callback() function : basic functionality
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--FILE--
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<?php
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/*
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* proto string preg_replace(mixed regex, mixed replace, mixed subject [, int limit [, count]])
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* Function is implemented in ext/pcre/php_pcre.c
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*/
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/*
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* Basic test for preg_replace_callback
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*/
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$replacement = array('zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine'); //array will have the default key values (0-9) and each value is the corresponding key written in words.
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function integer_word($matches) {
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global $replacement;
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return $replacement[$matches[0]]; //all examples will be looking for an integer value, if one is found it will be stored in $matches[0] which corresponds to a key in the $replacements array
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}
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$subject1 = 'there are 7 words in this sentence.';
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$new_subject1 = preg_replace_callback('/\d/', "integer_word", $subject1);
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print "$new_subject1 \n";
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$subject2 = '1 2 3 4 is now written in words';
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$new_subject2 = preg_replace_callback('/\d/', "integer_word", $subject2, 3); //limits to three replacements
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print "$new_subject2 \n";
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$subject3 = 'there are no numbers in this string';
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$new_subject3 = preg_replace_callback('/\d/', "integer_word", $subject3, 5, $count); //limites to five replacements and counts the number of replacements made ands stores in $count variable
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print "$new_subject3 \n";
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print $count;
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?>
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--EXPECTF--
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there are seven words in this sentence.
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one two three 4 is now written in words
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there are no numbers in this string
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0
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