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<?php $string = "The quick (brown fox jumps) over (the lazy dog)"; //First preg search all string in () preg_match_all('/\(.(.*?).\)/', $string, $match); foreach ($match[0] as $key => $value) { $result = preg_replace('/\s+/', '', $value); if(isset($new_string)){ $new_string = str_replace($value, $result, $new_string); }else{ $new_string = str_replace($value, $result, $string); } } echo $new_string; ?>
Output for 5.6.0 - 5.6.24, 7.0.0 - 7.0.20, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1
The quick (brownfoxjumps) over (thelazydog)
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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